HELP I don’t get this?? Your family goes to a restaurant for dinner. There are people in your family.
Some order the chicken dinner for $14.80, and some order steak for $17. If the
total bill was $91, which system best represents the situation? Let "c" represent

the # of people who ordered chicken and "s" represent those who ordered steak.

eveidence i thing that

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!

the answer is  

d.

121π mi^2

hope you got it chief