Question

Please help! I am really confused about these problems.

Answer 1

Explanation:

1) P < 28

7 + 7+ + x < 28

x < 28 - 14

x < 14

2) h-6 ≤ -8.4

h ≤ -8.4 + 6

h ≤ -2.4

(place the 2nd arrow from the left on the number line at -2.4)

3) -9.1 < d - 6.3

-9.1 + 6.3 < d

-2.8 < d

d > -2.8

(place the 4th arrow from the left on the number line at -2.8)