Extra points and brainliest will be given to the one with the correct answer : )

a)

p = # of fruit pies sold

b = # of fruit juice bottles sold

p + b = 79  > p = 79 - b

1.65p + 1.36b = 118.17

Substitute p = 79 - b into 1.65p + 1.36b = 118.17

1.65(79 - b) + 1.36b = 118.17

130.35 - 1.65b + 1.36b = 118.17

130.35 - 0.29b = 118.17

- 0.29b = -130.25 + 118.17

- 0.29b = - 12.18

b = 42

p = 79 - 42

p = 37

37  fruit pies sold

42 fruit juice bottles sold

b)

Mr. Sanchez's class sold: 1.65p = 1.65 (37) = $61.05

Mr. Kelly's class sold: 1.36b = 1.36(42) = $57.12

Mr. Sanchez's class earned more money

C) $61.05 - $57.12 =  $3.93

Mr. Sanchez's class earned $3.93 more than Mr. Kelly's class

relating to or denoting a system of numbers and arithmetic based on the number ten, tenth parts, and powers of ten.

step-by-step explanation:

answer: correct

step-by-step explanation: