Answer:
It seems that you have missed to upload the shaded region for this problem. you are requested to please provide the shaded region so that we can help you with this problem
Step-by-step explanation:
It looks like the differential equation is

Factorize the right side by grouping.


Now we can separate variables as

Integrate both sides.



You could go on to solve for
explicitly as a function of
, but that involves a special function called the "product logarithm" or "Lambert W" function, which is probably beyond your scope.
Answer:
First one.
Step-by-step explanation:
3750(0.20)=$750
1/5 as a percent is 20% and as a fraction it is 0.20