Math Quiz

What is the solution set of the equation below? |x + 4| = 3x - 12

• Ø

• {5}

• {8}

• {5, 8}

What is the value of the expression below when m = -7 and n = 4? |m - n| - m²

• 27

• 63

• -27

• -63

What is the solution to the equation below? 5/2(8x - 18) + 39 = 2(10x + 3)

• x = -3

• x = 0

• No Solution

• All Real Numbers

Simplify the expression below. 10x - 5 - 3² / 4 - 2³

• 12.8

• -12.8

• 0.8

• -0.8

Beth knows the perimeter, P, and width, w, of a rectangular window in her living room. Which formula can she use to find the length, l, of the window?

• l = P/2 - 2w

• l = P - 2w

• l = 2P - w

• l = P - 2w / 2

Ari, Nick, and Carlos sold candy bars for a school fundraiser. Ari sold two less than five times the number of candy bars than Carlos. Nick sold fifteen more than twice the number of candy bars than Carlos. If c is the number of candy bars Carlos sold, how many more candy bars did Ari sell than Nick?

• 3c + 17

• 3c + 13

• 3c - 13

• 3c - 17

Cara’s grocery bill this week was $7.60 more than two-thirds her grocery bill last week. If she spent $34.37 more last week, how much was her grocery bill this week?

Solve the inequality below: -4(1 - 5k) < 2(7k + 10)

If ( x = -9 ) or ( x > 2 ), which gives the possible values for ( x ) in interval notation?

• (- ∞, -9] ∪ (2, ∞)

• (2, ∞)

• [-9, ∞)

• [9, 2)

For which values of ( a ) is the expression below a natural number? Check all that apply. ( a + 2√(28 - 2a) )

• ( a = -6 )

• ( a = -4 )

• ( a = 2 )

• ( a = 6 )

• ( a = -1/18 )