An account with the amount an initial amount of $B earns compound interest at an annual effective interest rate i. The interest in the third year is $426 and the discount in the seventh year is $812. Find i.

rate = 17.49 %

Explanation:

given data

initial amount = $B

annual effective interest rate =  i

interest in the third year =  $426

discount in the seventh year = $812

solution

we know here formula for interest rate that is

interest = initial amount ×    .............1

$426 = $B ×

$B  =  ...............2

$812 = $B ×  

$B  =   ...............3

so from equation 2 and 3 we compare initial amount

solve it we get t

rate r  = 0.1749

rate = 17.49 %

answer/// equals both average variable cost and average total cost at their respective minimums;

answerthe united states of america;