Expressions equations and inequalities mixed review-Do first

Evaluate the expression 2x+3 if x=5

• 20

• 13

• 23

• 12

Which situation could be modeled by the equation 12x + 24y = 252?

•  Chris earned $12 per hour for x hours. After he bought 24 toys for y dollars each, he had $252 left.

• Chris bought 12 baseballs for x dollars each and 24 toys for y dollars each. He spent $252 in all.
  

• Chris bought 12 toys for x dollars each and earned 24 dollars per hour for y hours. He earned $252 in all.
  

• Chris bought 12 toys for $24 dollars each. He earned x dollars per hour for y hours. He has $252 in all.
  

What is the solution set to

 $-12x-10\le-144$  

•  $x\le12$  

•  $x<17$  

•  $x\ge12$  

•  $x<15$  

When I am solving an inequality when do I need to flip the inequality symbol?

Use this sentence stem: When solving an inequality I need to flip the inequality symbol when...

Solve this equation

 $7x+12=54$  

•  $x=6$  

•  $x=35$  

•  $x=19$  

•  $x=5$