HELP PLS what is the simple interest for $450 invested in a savings account at 2.25%
f)$18
g)$20.25
h)$202.50
i.)$470.25

The price of a visit to the dentist is \$50$50. if the dentist fills any cavities, an additional charge of \$100$100 per cavity gets added to the bill. if the dentist finds nn cavities, what will the cost of the visit be?