Answer:
5. $4.50
6. 40 photo albums
7. s ≥ 4.25
8. r ≤-2; filled circle on -2 going to the left
Step-by-step explanation:
5.
(4 + x ) / 2 =4.25
(multiply by 2)
4 + x = 8.5
(subtract 4)
x= 4.5
6.
60 = 5 + (n * 1 3/8)
(subtract 5)
55 = n * 1 3/8
(divide by 1 3/8)
40 = n
7.
70 ≤ 36 + 8s
(subtract 36)
34 ≤ 8s
(divide by 8)
4.25 ≤ s
8.
9r + 3 ≤ -15
(minus 3)
9r ≤ -18
(divide by 9)
r ≤ -2
