Answer:
The rate would be: 4:20 and the unit rate would be 1:5.
Step-by-step explanation:
Use the equation
A= 2(wl +hl +hw)
Where
w is width
h is height
l is length
You add all of them together if it’s labeled with a X.
For example, the first X is 1 hour. If it has 2 Xs it would be 2 hours, if no X is shown above, it’s zero hours.
Answer is 12 hours.
(64)^3/2 = (sqrt(64))^3 = 8^3 = 512.
