The answer of x is equal to 2
Answer:

Step-by-step explanation:

Apply sum of cubes formula: 


Answer:
4.4
Step-by-step explanation:
The answer is 4.4 because if you know that 5*4 equal 20 so 4 can go each of the 5 groups so 24-20 leaves you with 4 so your answer is 4 remainder 4
Answer:
390
Step-by-step explanation:
Answer:
5 hours
Step-by-step explanation:
We can write a ratio
20 laps 100 laps
-------------- = --------------
1 hour x hours
Using cross products
20x = 100
Divide by 20
20x/20 = 100/20
x = 5 hours