Friday Quiz 12/1

Simplify the Expression:

3x²y + 4x - 6y + 4x²y -2y

• 11x²y - 8y

• 3y

• 7x²y - 4y

• 7x²y + 4x - 8y

Combine like terms
3x + 2x + 3y - 7y

• 5x + 10y
• 5x + 4y
• 5x - 4y
• 5x -10y

2(4X-7)

• 8x-14
• 8x-7
• 6x+7
• 8x+14

7(y+9)

• 7+9

• 7y+63

• -7y-63

• 7x+63

Multiply:
(9.4 x 10⁶)(3.2 x 10⁵)

• 30.08 x 10¹¹
• 3.8 x 10¹
• 3.008 x 10¹²
• 2.9375 x 10¹

(9.6×10^-8)÷(2×10^-15)

• -4.8×10⁷
• 4.8×10⁷
• 4.8×10^-7
• -4.8×10^-7

7(p + 9) = -21

• -12
• 1
• -7
• -11

Solve for m: 4(m+3)= -7(4-2m)

• m=2

• m=-4

• m=5

• m=4

14p - 8 = 22 + 20p

• p = -5

• p = 5

• p = 30

• p = -6

Peppy Pets charges a flat fee of $15 plus $3 per hour to keep a dog during the day. Happy Hounds charges a flat fee of $21 plus $1 per hour. Which equation could you use to see when the two companies would charge the same amount?

• 18x = 22x

• 3x + 15 = x + 21

• 15x + 3 = 21x + 1

• 3x + 15 + 21x = 1