Answer:
b.
Step-by-step explanation:
The quantity x minus 2y is (x - 2y), then we add 3.
The LCD is 10 because you can multiply 2/5 by 2 to get 4/10
Answer:
27/20
Step-by-step explanation:

Use the formula SA=a+1/2ps
a=area of the base
p= perimeter of the base
s= slant height