In training for a swim meet, Tom swam 1000 meters in NI
hour. His swimming
partner, Carl, swam
17/
of Tom's distance in
hour.
Fill in the blanks to compare Tom's and Carl's swimming speeds.
Carl swam how many meters in 1/3 hour.

21

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!

step-by-step explanation:

its 512 because parenthesis and to the 2nd power is 512 so it will be 512