John and karen plan on building a garden in their new home. they plan on designing a rectangular garden with a perimeter of 24 feet. if the width of the garden is two times the length, what are the dimensions of their designed garden. the width is how many feet and the length is how many feet?

the answer is 31.27mph

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!