Arnold borrowed $7890 at 11.5 percent for five years. how much did arnold pay in interest?

The total amount Arnold pay in interest is $ 2521.30

Step-by-step explanation:

Given :Arnold borrowed $7890 at 11.5 percent for five years.

We have to find the amount Arnold pay in interest

Using formula for monthly payment ,

Given :  Principal value = $7890

Rate of interest = 11.5% anually

So monthly interest rate is

Time = 5 years

In months 5 years = 5 ×  12 = 60 month

Substitute, above we have,

Simplify, we get,

Monthly payment = $ 173.52

Total payment that Arnold pay = No. of months × Monthly Payment

⇒ Total Payment = 60 × 173.52

⇒ Total Payment =  $ 10411.30

Since, Money Arnold borrowed = $7890

Thus, Amount of interest = Total payment - Amount borrowed

⇒ Interest = 10411.30 - 7890

⇒ Interest = $2521.30

Thus, The total amount Arnold pay in interest is $ 2521.30

b.my answer is b.

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step-by-step explanation: