The cost of having a luncheon catered at an exclusive restaurant is based on a fixed fee to rent the party room, plus the cost of each meal. the cost for a party of 20 people is $170. the cost for a party of 60 people is $310. determine the cost per meal served. b) determine the fixed fee to rent the party room. write an equation for the total cost in y=mx+b form
PLEASE ANSWERR FAST ILL GIVE BRAINLEST

the correct answer is 5

16.9 times 2.85

step-by-step explanation:

step-by-step explanation:

what grade level is this? need to know so i can look in my old textbooks!

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!