There are 5 pairs of khaki pants, 11 pairs of jeans, 1 pair of gray pants, 6 pairs of black pants, and 2 pairs of red jeans in the closet. What is the probability of randomly picking a gray pair of pants, putting it back, and then randomly choosing a black pair of pants?

1/25 chance of picking a gray pair of pants, 6/25 chance of picking a black pair of pants

gregory's graph is incorrect because it shows 2 inches of growth for each week when it should show 0.75 inches of growth each week.

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!