The total cost of ordering 10 shirts can be calculated as following:
C = 4 + 12(10)
C = 4 + 120
C = 124
Answer:
7
Step-by-step explanation:
We have the sum of cubes identity

and observing that 1 + 4 = 2 + 3, we have

and

Then

Alternatively, we have the well-known sum of cubes formula

The sum under the square root is this sum with
. Then

and so the square root again reduces to 15.