7th grade math review

Which expression is equivalent to

v + v + v + v + v?

• 5v

• v⁵

• v + 5

Simplify by combining like terms:
5a + 2b - 3a + 4

• 8a + 2b + 4
• 2a + 2b + 4
• 8ab
• 4ab + 4

Simplify by combining like terms:
4x² - 3x + 11 -2x

• 4x² - 5x + 11
• 11x + 11
• 16x² - 5x + 11
• 10x²

3x²-x+2-5x²+8x-5

• 8x²+9x+7
• -2x²+7x-3
• 2x²+7x-3
• 5x²-3

• Can't be simplified

Simplify: 10w + 3d + 3w + d

• 13w + 4d

• 17wd

• 13w + 3d

• Can't be simplified

Simplify: 8x² + 5x + 2y + x

• 14x + 2y

• 13x²+ 2y + x

• 8x² + 6x + 2y

• 8x² + 7xy + x

Like terms have the same _____ and the same _____.

• variables and numbers
• signs and numbers
• variables and exponents
• variables and signs

A constant term has ______.

• no exponents
• no variables
• no numbers
• no letters

A coefficient is __________.

• the variable
• a constant
• an exponent
• the number that comes before the variable