Answer:
30
Step-by-step explanation:
Add all of them
Present value of the loan amount is $
with a maturity value of $
for
months at
%
How to find the present value of loan amount ?
We know that
Maturity value of loan amount 
Time period is
months
Rate (r)
%
Present value of loan amount=?
So we can use the formula of maturity level

Substitute the values

So present value of the loan amount is $
in round figure.
Learn more about the maturity level and loan here:
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Answer:
$14.40
Step-by-step explanation:
a. (18) (80%) = (18) (.80) = $14.40 is discount
b. (x)(.80)= discount price
c. 18/80% =$22.50 is regular price
If the sale is a half off, then the sale price is