Find the perimeter of a table cloth that is forty inches square.

160 inches

Step-by-step explanation:

The reason I'm saying this is because there was little detail to go off of. the only thing I have is the 40 inches and I'm not sure if the square is like this ², or an actual square. If you can, please add more detail next time

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!

it would open into a square depending on the type of envelope i’m not sure about the second part