65m + 50 = c\nwhat would be the yearly cost of internet and tv (12 months)?

Explanation:

Step1: Substitute number of months

We know $m = 12$. Substitute $m = 12$ into the equation $65m+50 = c$. $c=65\times12 + 50$

Step2: Calculate multiplication

First, calculate $65\times12$. $65\times12=780$ So $c = 780+50$

Step3: Calculate addition

$c=780 + 50=830$

Answer:

$830$