Bob worked for four hours at the sporting good store and earned $8.25 per hour then he shoveled snow for two hours and earned $10 per hour what was Bobs average earnings per hour for all six hours.

$8.33 per hour

Step-by-step explanation:

4(8.25) = $33 earned at the sporting goods store

2(10) = $20 earned shoveling snow

$53 = total earned in 6 hr.

53/6 = $8.33 per hour to nearest penny

$53/6 = exact amount earned per hour

answer: howdy

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!