Answer:
18.5
Step-by-step explanation:
First we plug in the number
-1 1/2 is the same as -1.5
Plugging this in we will have:
15(-1.5) + 4 =
-22.5 + 4 =
-18.5
Step-by-step explanation
4*1.2=4.8
7*1.2=8.4
8.4*4.8=40.32