Answer:
Part 1) 
Part 2) 
Step-by-step explanation:
we know that
The volume of a cube is equal to

where
s is the length of the cube
Part 1)
we have

substitute in the formula


Part 2)
we have

substitute in the formula


Answer:
1.55
Step-by-step explanation:
3750+900 = 4650
4650/3000 = 1.55
The amount of the tip is 12%
Answer:
c
Step-by-step explanation: