*multiple choice* if you had a loan for $30,000 at an annual interest rate of 8 percent with a 90-day interest prepayment penalty, what would be the amount of your penalty? show your work. a. $200 b. $400 c. $600 d. $2,400

C. $600

Step-by-step explanation:

I = Prt . . . . . P is the principal amount, r is the interest rate, t is the period (years)

I = $30,000×0.08×90/360 . . . . . assuming ordinary interest

... = $30,000×0.02 = $600

The penalty of 90 days's interest is $600.

$53.50

step-by-step explanation:

you have to subtract the amount of money chuck earned ($72.50) by the cost of the gas for the mower ($11.25) and the new string for the trimmer he bought ($7.75).

72.50-11.25=61.25

and then subtract $61.25 by the second thing he bought (the new string for the trimmer)

61.25-7.75=53.5

so in total it's $53.50 (53 dollars and 50 cents)

$450 is the answer.

step-by-step explanation:

30% of 450 = 135

450-135=315