R
juanita borrowed $600 to purchase a new computer. she was charged 7% interest for two years. she used the simple interest formula to find the interest.
i = 600(7)(2)
what error did juanita make and how will her error affect the interest she calculates? explain

Given :-

Juanita borrowed $600 .

Rate of Interest = 7% .

Time = 2yrs .

To find :-

Error made by her.

Answer :-

As we know that the formula for Simple interest is ,

SI = P*R*T / 100

Substitute ,

I $600* 7 * 2 / 100

I = $ 84 .

So here she did not write 7 % as 7/100 instead she wrote 7 .

correct answer:

b.(19,-2)