Answer:
The answer is
90 degrees the first one is I don't know about the rest sorry
Step-by-step explanation:
Answer:
12
Step-by-step explanation:

can also be written as 2i
where i = √-1

Rationalizing denominator,
Assuming the price of the pool does not change, then
Additional interest required is 4500-3750=750
using
I=Pit, we set up equation
750=3750*0.055*t
Solve for t
t=750/(3750*0.055)=3.64 years.
So will need to wait 3.64 years, or rounded up to 4 years.