2 x − 6 2 x − 6
36 36
2 2
3.5 3.5
20 + 5 n 20 + 5 n
6 6
x = 2 x = 2
60 60
10 10
w − 3 w − 3
3 h 3 h
25 25
(a) 50.24in.50.24in.; (b) 200.96sq.in200.96sq.in.
0 .196 0 .196
125 125
32 32
77 2 77 2
35 miles 1 gallon 35 miles 1 gallon
12 12
$200 $200
$180
40
2
7
$950
$4,200
25
4
3
6
9, 15
27, 31
−8, −15
−29, 11
−4, 0
−2, −3
47, 48
−15, −16
31, 32, 33
−11, −12, −13
9 nickels, 16 dimes
17 nickels, 5 quarters
42 nickels, 21 dimes
51 dimes, 17 quarters
41 nickels, 18 quarters
22 nickels, 59 dimes
330 day passes, 367 tournament passes
112 adult tickets, 199 senior/child tickets
32 at 49 cents, 12 at 8 cents
26 at 49 cents, 10 at 21 cents
40°, 140°
25°, 65°
21°
56°
34°
45°
20°, 70°, 90°
30°, 60°, 90°
8
22.5
10
17
12
12 feet
8 feet
15 in.
9 yd
18 m, 11 m
11 ft , 19 ft
8 ft, 24 ft
5 cm, 4 cm
26 ft
29 m
30 ft, 70 ft
60 yd, 90 yd
13 sq. in.
49 sq. in.
8 ft
6 ft
14 in.
13 in.
17 cm
14 ft
7 m
161 sq. yd
225 sq. cm
42 sq. cm
63 sq. m
40.25 sq. yd
240 sq. ft
17.27 ft
37.68 ft
30 cm
110 ft
28 sq. units
110 sq. units
36.5 sq. units
70 sq. units
103.2 sq. units
38.24 sq. units
65.94 cu. in.
235.5 cu. cm
678.24 cu. in.
128.2 cu. in.
330 mi
7 mi
11 hours
56 mph
ⓐ h=20h=20 ⓑ h=2Abh=2Ab
b = P − a − c
c = P − a − b
y = 11 − 7x
y = 8 − 11x
y = 9 − 4 x 7 y = 9 − 4 x 7
y = 1 − 5 x 8 y = 1 − 5 x 8
There are 30 children in the class.
Zachary has 125 CDs.
There are 6 boys in the club.
There are 17 glasses.
Lisa's original weight was 175 pounds.
18%
The original price was $120.
15
5
−5
18, 24
8, 12
4, 10
32, 46
38, 39
−11, −12
25, 26, 27
The original price was $45.
Each sticker book cost $1.25.
The price of the refrigerator before tax was $1,080.
Answers will vary.
8 nickels, 22 dimes
15 dimes, 8 quarters
12 dimes and 27 nickels
63 dimes, 20 quarters
10 of the $1 bills, 7 of the $5 bills
10 of the $10 bills, 5 of the $5 bills
16 nickels, 12 dimes, 7 quarters
30 child tickets, 50 adult tickets
110 child tickets, 50 adult tickets
40 postcards, 100 stamps
30 at 49 cents, 10 at 21 cents
15 at $10 shares, 5 at $12 shares
9 girls, 3 adults
62.5°
62°, 118°
62°, 28°
44°
57°
67.5°
45°, 45°, 90°
351 miles
10.2
5 feet
14.1 feet
2.9 feet
cubic
square
linear
24 inches
27 meters
23 m
7 in., 16 in.
17 m, 12 m
13.5 m, 12.8 m
25 ft, 50 ft
l = 11 m, w = 7 m
26 in.
55 m
35 ft, 45 ft
76 in., 36 in.
30 sq. in.
25.315 sq. m
0.75 sq. ft
23 in.
11 yd
28 cm
17 yd
6 m
15 ft
24 in.
27.5 in.
12 ft, 13 ft, 14 ft
3 ft, 6 ft, 8 ft
144 sq. ft
2805 sq. m
231 sq. cm
28.56 sq. m
13.5 sq. ft
1036 sq. in.
$240
62.8 ft
37.68 in.
6.908 ft
52 in.
5.5 m
24 ft
6.5 mi
16 sq. units
30 sq. units
57.5 sq. units
12 sq. units
67.5 sq. units
89 sq. units
44.81 sq. units
41.12 sq. units
35.13 sq. units
95.625 sq. units
187,500 sq. ft
9400 sq. ft
37.68 cu. ft
324.47 cu. cm
261.67 cu. ft
64,108.33 cu. ft
612 mi
6.5 hours
3.6 hours
60 mph
80 mph
a = 180 − b − c
y = 15 − 8x
y = −6 + 4x
y = 7 − 4 x 3 y = 7 − 4 x 3
y = 4 + x
L = P − 2 W 2 L = P − 2 W 2
d = C π d = C π
L = V W H L = V W H
104° F
Answers will vary
There are 116 people at the concert.
His original weight was 180 pounds.
38
18, 9
16 dimes, 11 quarters
6 of $5 bills, 11 of $10 bills
35 adults, 82 children
3 of 26 -cent stamps, 8 of 41 -cent stamps
132°
33°, 57°
73°
26
8.1
6 feet
25 cm
62 m
24.5 cm., 12.5 cm.
135 sq. in.
600 sq. in.
7 in., 7 in.
17 ft., 20 ft., 22 ft.
100 sq. ft.
675 sq. m
48 in.
300 sq. units
199.25 sq. units
5.233 cu. m
4.599 cu. in.
1520 miles
1.6 hours
a = 90 − b
y = 17 − 4x
W = P − 2 L 2 W = P − 2 L 2
−16
7 quarters, 12 dimes
38°
48.3
127.3 ft
2200 square centimeters
282.6 inches
1440
31,400 cubic inches
14.7 miles per hour