Answer:

Step-by-step explanation:
Let x be the number of minutes she can continue, since she's already 20 feet below the ocean surface and is diving at the rate of 20 ft/minute, her depth with respect to x would be
20 + 20x
But she doesn't want to reach more than 100 feet below the surface

Cost of repairing the pool is
= Rs 12750
Correct me if i'm wrong
$96(2 payments) = $192
$192/(12 months) = $16 per month (she should set aside)