Expressions, Equations, and Inequalities

Which of the following phrases does NOT represent 9-p

• p less than 9
• difference of 9 and p
• 9 minus p
• subtract 9 from p

Which is the solution to the equation below?

9 = n + (- 3)

• 3
• 6
• 12
• 27

Which equation has a solution of 12?

• x - 6 = 6
• x + 6 = 6
• 4 = x - 16
• 4 = 8 + x

Which is the solution to the equation below?

- 3 = t - 12

• -9
• 4
• 9
• 15

For which equation is r = 4 the solution?

• r ÷ 2 = 16
• 4 r = 16
• 8 = r ÷ 8
• -2r = -16

Which is the solution to the equation?

32 =  Q ∕  2

• 16
• 30
• 46
• 64

Sean wants to buy a skateboard for a total of $49.99.

He has $42.50 saved in his bank account. Find x, the amount still needed to buy the skateboard

• x - $49.99 = $42.50

  x is $3.51

• x + $42.50 = $49.99

  x is $7.49

• x+ $42.50 = $49.99

  $17.49

• x + $42.50 = $49.99

  $92. 49

Solve for n.

n + (-90) = - 100

• 10

• 190

• - 10

• -190

Solve

7.20 + h = 57

(Remember to put a decimal behind 57 if needed)

• 4.98

• 49.8

• 64.2

• 80

For which equation is w = 9 a solution?

• w + 9 = 9
• 9w = 72
• w - 8 = 11
• w ÷ 3 = 3