Simplify the expression: 3(y + 2) + 7y

• 10y + 6

• 10y + 2

• 3y + 6

• 3y + 9

Simplify the expression: 5a^2 - 3b + 2a^2 + 7b

• 7a^2 + 4b

• 7a^2 - 4b

• 3a^2 + 4b

• 3a^2 - 4b

Which of the following expressions cannot be simplified further?

• 2x + 3y - 5

• 4(x - 1) + x

• 7a + 2a

• b^2 + 3b^2

Simplify the expression: 8k - 2(5 - k)

• 6k - 10

• 10k - 10

• 9k - 10

• 10k - 5

Simplify the expression: -x + 4x - 1.5y - 0.5y

• 3x - 2y

• 3x - y

• 5x - 2y

• 5x - y

Simplify the expression: 2(a + 4) - 3(a - 1)

• -a + 5

• -a + 11

• 5a + 5

• 5a + 11

Simplify the expression: -3.5(2p - 4)

• -7p + 14

• -7p - 14

• -7p + 4

• -7p - 4

Simplify the expression: 5ab + 2a - 3ab + 6a

• 2ab + 8a

• 8ab + 8a

• 2ab + 4a

• 8ab + 4a