joseph is selling cellphone data plans. he charges 55 dollars per month with a one time start up fee of 21 dollars. fill in the expression. let m represent number of months

Question

__m+__

Answer 1

To express the total cost of the cellphone data plan as a function of the number of months \( m \), you can use the following expression:

\[ 55m + 21 \]

Here:

• \( 55m \) represents the monthly charge for \( m \) months.
• \( 21 \) is the one-time startup fee.

Therefore, the complete expression is:

55m + 21