Two numbers are in the ratio of 2 to 3. If the smaller number is 18, the larger number is .
a) 27
b) 54
c) 21
d) 36

yea the answer  is a -27

Step-by-step explanation:

2 x 9 = 18

3 x 9 = 27

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!