Expressions and Equations

Which expression represents the phrase "eight fewer than the product of a number x, and four"?

• 8 - 4x

• 4x - 8

• x + 4 - 8

• 4x ÷ 8

Solve for x:

• x = 20
• x = 7
• x = 10
• x = 3

Mike is 6 years younger than Iris. What expression can be used to find Mike’s age?

• 6 + a
• 6 - a
• a - 6
• 6a

6z + 3 -4z = 9

• z = 3
• z = 60
• z = 30
• z = 1

Add these expressions
(3x+15) + (4x+13)

• 7x+ 28
• 35x
• x+2

Maria has 25 dollars.  She has to buy a gallon of milk which costs $3.50.  She wants to spend the rest of her money on cereal.  If each box of cereal costs $4.50, how many can she purchase?

• 4 boxes
• 5 boxes
• 6 boxes
• 7 boxes

3x + 2(4x - 4) = 3

• x = 22
• x = -22
• x = 1
• x = -1

2. Cheryl gets paid $8 per hour for her job at the record store.  She made a total of $96 last week.  Which equation models this situation?

• 96h = 8
• h/96 = 8
• 8h = 96
• h/8 = 96

Mei was going to sell all of her stamp collection to buy a video game.  After selling half of them she changed her mind.  She then bought nineteen more.  How many did she start with if she now has 45?

• 2/x + 19 = 90
• x/2 + 19 = 45
• 2x +19 = 109
• 19x + 2 = 71

The space club is having some posters printed. The printer charges $250 plus $2 per poster. How can I figure out how many posters I could print for $1,000?

• 250x + 2 = 1000
• 1000 + 2x = 250
• 250 - 2x = 1000
• 2x + 250 = 1000