Answer:
x = 20
y = 7.2
Step-by-step explanation:
12/x = 9/15
9x = 180
12/x= y/12
12/20 = y/12
144 = 20y
y = 20
A. (U+V)^2 or (U-V)^2
10x=4
x=4/10
x=2/5