Answer:
Compound interest =$14.58
Simple Interest=$14.79
Step-by-step explanation:
Let's assume the interest rate charged on the loan was simple in nature.
-Simple interest is calculated using the formula:

Hence, the simple interest on the loan was $14.79
#If the interest is compound in nature with just one compounding per year:

Hence, the compound interest charged on the loan is $14.58
Answer:
can u zoom in and take picture
Step-by-step explanation:
You’d set up a proportion. I did 25/15=7x-40/18.
Then you would cross multiply to get 15(7x-40)=450
Distribute the 15.
105x-600=450
Add 600 to both sides, so the -600 cancels out.
Then you’re left with 105x=1050
Divide both sides by 105 and you get x=10