Neil glenn buzz astronaut extraordinaire has returned to the kennedy space center with samples from his recent interplanetary travels he has 3.47 kilograms of soil from mars given that mars has an average soul density of 3.93 g/cm how many cubic centimeters of soil is that

the two may have that, even a breakdown is probably offered

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!