Find the unit rate for the following situation. Jillian is about to go on a road trip. She pays $31.36 for the gas. She puts 14 gallons of gas in her car. How much does the gas cost per gallon?

Group of answer choices

$0.47 per gallon

$5.24 per gallon

$0.44 per gallon

$2.24 per gallon

i think its D it prolly.isnt though im not sure

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!