Maria by 1 and 2/5 pounds of lunch meat for $3.36 how much would 2 3/4 lb of lunch meat cost

$6.60

Step-by-step explanation:

1 2/5 = 1.4

3.36/1.4 = 2.4

2.40 per pound

2.40 * 2.75 =  6.60

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!

13664

step-by-step explanation:

=cross multiply

=100 x = 13664