Find the exact value of simple interest on a loan of $6,500,borrowed at 9%,made on July 22, and due on November 30. Use 365 days in a year and use the exact number of days in a month. Round to the nearest whole number of dollars. Note:

Simple Interest = P X T X R

Select one:

$211

$213

$212

$214

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hello from mrbilldoesmath!

answer:

25x^2 + 90x + 84

discussion:

mn(x) = m(n(x)) = m( 5x + 9) =

(5x + 9)^2 + 3 =>

25x^2 + 90x + 9^2 + 3 =

25x^2 + 90x + 84                 (as 9^2 = 9*9 = 81)

which is the second choice

regards,  

mrb

p.s.   i'll be on vacation from friday, dec 22 to jan 2, 2019. have a great new year!