Expressions

Which of the following represents twice the difference of a number and 7?

• 2x - 7
• 2(x - 7)
• 2x + 7
• 2(x + 7)

Which of the following is the ratio of a number and 7 increased by 16

• 7x + 16
• 7/x + 16
• x/7 + 16
• 7x/16

Which of the expressions means 4p + m²

• The product of 4 and a number increased by the number squared.
• The product of 4 and a number increased by a different number squared.
• The product of 4 and a number increased by the square root of that number
• The product of 4 and a number increased by the square root of a different number.

Which of the following represents the absolute value of a number subtracted from 5?

• t - 5
• |5| - t
• |t| - 5
• 5 - |t|

three times the quantity x minus 5

• 3x - 5
• 3(x - 5)
• 5 - 3x
• 5(x - 3)

Which is an algebraic expression for "six less than k".

• 6/k
• k/6
• 6 - k
• k - 6

The quantity 3 plus r times the quantity r minus 7

• 3 + r(r - 7)
• 3r(r - 7)
• (3 + r)(7 - r)
• (3 + r)(r - 7)

What is the coefficient?
-9 + -5x

• -9
• -5
• x

Identify the property shown.

• Commutative
• Associative
• Distributive
• None

Identify the property shown.

• Commutative
• Associative
• Distributive
• None