Answer:
It is the third choice
Step-by-step explanation:
Because if you put y=mx+b backwords its y-b/x
It's Option'A' i.e 20m=75
or,m=75/20
or,m=3.75
152.9 ft
14*8=112
8*4=32
112+32+8.9=152.9
21?
idk