for each 24mm of coloured fabric Gordon uses to make his curtains he also uses 1.2cm of white fabric. Express the amount of white fabric to coloured fabrics as a ratio in its simplest form.

easy math just plug in a and b

step-by-step explanation:

x=6 and x=3

beep beep imma sheep

17.08

correct me if i am wrong.

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!