Answer:
The space inside the box is the volume, which is 128 ft3
Step-by-step explanation:
Given the dimensions of the box as 8ft by 2ft by 8ft. We calculate it's volume and surface area to validate the statements;

The volume of the box is 128 ft^3 and its surface area 192 ft^2. Hence, the correct statement is The space inside the box is the volume, which is 128 ft3
The solution for k would be 12
Answer:
The value of the CD at the end of the 4 years is $5,808.86.
Step-by-step explanation:
Compound interest:
The compound interest formula is given by:

Where A(t) is the amount of money after t years, P is the principal(the initial sum of money), r is the interest rate(as a decimal value), n is the number of times that interest is compounded per year and t is the time in years for which the money is invested or borrowed.
Howard invested $5,000 in Certificate of Deposit (CD) that pays 3.75% interest.
This means that 
Compounded weekly
An year has 52 weeks, so 
Then


What is the value of the CD at the end of the 4 years?
This is A(4). So

The value of the CD at the end of the 4 years is $5,808.86.
Answer: There are 13 slices when Dario cuts .
Explanation :
Since we have given that
Quantity of parmesan cheese is given by

Quantity of ricotta cheese is given by

Quantity of mozzarella cheese is given by

Now, total quantity of cheese Dario have

Now,
According to question, Dario cuts the lasagna into several equal slices and each containing exactly

So,
Number of slices is given by

Hence, there are 13 slices when Dario cuts .