A drawer contains 6 pairs of black, 5 pairs of white, 5 pairs of red and 4 pairs of green socks.

(a) How many single socks do we have to take out to make sure that we take two socks with the same color?
(b) How many single socks do we have to take out to make sure that we take two socks with different colors?

45

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!

many reason,

step-by-step explanation:

answer: sherk

step-by-step explanation:

just give up and watch the best anime ever sherk