Answer:

Step-by-step explanation:
Simple interest is where interest is only accumulated on the principle, so at 4.5% for 5 years, 22.5% is added to the principal.
Answer:
4
Step-by-step explanation:
It's easy because 4-4=0 and anything divided by zero is zero.
X2-64=0
x2=64
x=8 because when multiplied by itself, and plugged back in, it works