There are 8 airplanes...maybe...check me on a calculator....
Let H = Henry
Let R = Roger
Let S = Sandy
H = 3R -> H = 3y
S = 9 + H -> S = 9 + 3y
R = y
Sandy has 3y + 9 CDs more than Roger.
Answer:
3^8
Step-by-step explanation:
3^6/3^-2 is 3^(6-(-2)) which is 3^8
Hope this helps ;D