Use the formula for interest. p= $250 r= 7.2% y= 15 a= ?

value of A is $520

Step-by-step explanation:

Calculate the amount 'A' by using formula:-

A = P ( 1 + r * Y )

Where A is amount, P is principle , r is rate of interest and Y is time in years

Now, put the given values in  A = P ( 1 + r * Y ) to get the value of A.

Since, P= $250, r= 7.2%  and Y= 15

r = 7.2% so r = 0.072

A = P ( 1 + r * Y )

A = $250 ( 1 +0.072 * 15 )

A = $250 ( 1 + 1.08 )

A = $250 (  2.08 )

A = $520

Hence, value of A is $520

it is a. 4.2 because 7.6-3.4 gets the remaining length of 4.2. i might be wrong but i am pretty sure this is the answer.