The expression 7h + 1.50d can be used to find the total earnings after h hours and d deliveries have been made. How much will Sally make after working 10 hours and making 3 deliveries?
$74.50
$36
10. Multiple Choice
30 seconds
1 pt
You order CDs for $14.25 each and the website charges $4.50 for each shipment. The expression $14.25p + $4.50 represents the cost of p CDs. Find the total cost for ordering 4 CDs.
$61.50
$22.75
11. Multiple Choice
30 seconds
1 pt
Evaluate 8a - b if a = 10 and b = 6
74
38
1000
9000
12. Multiple Choice
30 seconds
1 pt
Evaluate 2a + 4b if a = 10 and b = 6
20
24
44
4
13. Multiple Choice
30 seconds
1 pt
Evaluate 2r + 1 if r = 3
6
5
7
8
14. Multiple Choice
30 seconds
1 pt
Evaluate 4y if y = 3
7
12
15. Multiple Choice
30 seconds
1 pt
3x + 8 if x = 2
13
14
15
16
16. Multiple Choice
30 seconds
1 pt
Evaluate 7y - 3y for y=2
40
73
8
4
17. Multiple Choice
30 seconds
1 pt
Evaluate the expression using the values m = 7, r = 8, and t = 2. 4m + t
30
28
26
14
18. Multiple Choice
30 seconds
1 pt
Evaluate the expression using the values m = 7, r = 8, and t = 2. r/t
8
6
4
7
19. Multiple Choice
30 seconds
1 pt
Evaluate the expression using the values m = 7, r = 8, and t = 2. 3m – 5t