Answer:
x = ⁶/₅
Step-by-step explanation:

Answer:
120
Step-by-step explanation:
z=8 w=8
7(8)=56
8(8)=64
56+64=120
Hello.
1. Switch y and x.
x = 10y^2 - 4
2. Isolate y.
x + 4 = 10y^2
(x + 4)/(10) = y^2
y = sqrt[(x + 4)/(10)]
3. Replace y with f^-1(x)
f^-1(x) = sqrt[(x + 4)/(10)]
Good luck to you!
18 = 2·3·3
So possibles prisms are:
2×3×3
1×2×9
1×6×3
1×1×18
Therefore Quentin can make 4 different rectangular prism with 18 unit cubes.
You would multiply 10 times \pi (3.14)

and get 31.40 cm squared