Which set of expressions are not equivalent?

(4a + 2) + 3 and 5 + 4a

3a + 7 + 2a and 7 a + 5

0.5a + 3.5 + 4a and 3.5 + 4.5a

18a + 14 and 6a + 12 + 2 + 12a

A sports club is planning a cookout. The food service charges $1.75 per person plus a flat fee of $200. The club can only spend $500 for food service. Determine the maximum number of people the club will be able to serve.

Substitution -x + y=-5 3x-5y=9

the big bag is 16 ounces and costs $4.32. The medium is 20 ounces and costs $2.60. The small bag is 6 ounces and costs $1.80

Game 1. There are 20 sticks. 2 players take turns removing 1 or 2 sticks. The player who cannot make a move loses. Can you always win if you can choose whether you go first or second? How?

A medical lab is testing a drug that removes a certain percent of fluid from the lungs of a patient every eight hours. The expression below represents the number of milligrams of fluid remaining in a patient's lungs after n days. 4,000 (0.

Justin's dog gets 44.8 grams of protein in each meal. How much protein does the dog get in 6 meals?

10-[ (-4) + (-2) ]-[ (-7) - (-2) - (-1) ]

23. The solution set for x - 13 = - 144x

How many boxes of of candy would you use if you had 80 pieces of candy

What is a reflection across y = - x