Step-by-step explanation:

Y=kxz
64=k×8×4
64=32 K
K=64÷32
=2
Y=kxz
y=2×7×6
Y=84 ....answer
Answer:
z = 
Step-by-step explanation:
Given that z is directly proportional to x³ and inversely proportional to y²
Then the equation relating them is
z =
← k is the constant of proportionality
Answer:
rectangular prism
Step-by-step explanation: