Answer:
I think that it's 27
Step-by-step explanation:
Because I think that exterior angles cannot be "vertical"
The volume of a pyramid can be calculated as:

Where B is the area of the base and H is the height. We are given V = 60 cubic inches and H = 5 inches. Solving for B:

Substituting:

The area of the base is 36 square inches.
We must choose the option whose area is 36 sq in.
A square of a side length of 6 inches has an area of:

Thus, the correct choice is D.
Answer:hello the answer is C. 7$
Step-by-step explanation:
Total money Marcus has = $28
Money spent to buy a notebook = $3.75
Money left now = 
Money needed to be saved = $11.25
So, the amount of money Marcus can spend = 
Cost of a packet of chips = $1.30
The inequality to determine the maximum number of chips he can buy is:
Let the number of chips Marcus can buy = x
As he cannot spend more than $13 to buy chips so equation becomes:

Solving this we get

Hence, Marcus can buy a maximum of 10 packs of chips and save $11.25