Subtract 5.1 - 2 from 30 +4. O 8.1 - 6 o 2x+2 + 2 O - 8x + 6 - 8x + 2​

the diameter is 16 cm. are you a teacher?

step-by-step explanation:

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!

55 because 55 + 55 = 110 good luck babe