Answer:
you didn't provide exact question so here's some help
Explanation:
To find the total monthly cost, we need to know how many client sessions the sports trainer has in a month.
Let's say he trains 15 clients in a month.
The cost for client sessions would be:
$10 x 15 = $150
So the total monthly cost would be:
$70.59 (phone) + $40.16 (website/advertising) + $150 (client sessions) = $260.75