Answer:
+
= $714.88
Explanation:
She pays a membership fee of $75.00 and $49.99 per month for the first 8 months. Here the cost becomes :
= $474.92
Now, the next part of the question says, the gym increases its rates, and she must pay $59.99 per month for the next 4 months. This becomes:
= $239.96
So, total cost becomes :
+

= $714.88 (Answer)