let the cost of a pen be p dollars. Write an expression for the total cost of four pens and seven mechanical pencils in term of p

Question

help me with this question please!!

Answer 1

Let P=cost of the pen ($)

Let M=cost of mechanical pencils ($)

 

4P+7M

 

Let's say the problem said, "The total cost of 4 pens and 7 mechanical pencils was $300. Write an expression for the total cost using P for the cost of the pen." Then the formula would be:

 

4P+7M=300