Ken’s sister borrowed $530 from the bank at 8.4% per year. A) how much interest did she pay in one year
b) how much interest did she pay in three years

A) She pays $44.52 in one year.

B) She pays $133.56 in three years.

Step-by-step explanation:

Ken’s sister borrowed $530 from the bank at 8.4% per year.

A) how much interest did she pay in one year

Here's the required formula to find the interest :

Substituting all the given values in the formula to find the interest for one year :

Hence, the interest is $44.52.

b) how much interest did she pay in three years

Here's the required formula to find the interest :

Substituting all the given values in the formula to find the interest for three years :

Hence, the interest is $133.56.

4th option is correct xy=-10

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look in attachments

step-by-step explanation:

a = (-2, 0)

b= (-4, 0)

c = (-5,2)

d = (-1,2)