Directions: Answer these questions pertaining to algebraic expressions.

1.
Which expression represents "3 less than twice x" ?

Choose:
 2x - 3 3x - 2 3 - 2x 2 - 3x

2.
Which choice is a description of 6n + 9 ?

Choose:
 6 times the sum of n and 9 9 times the sum of 6 and n 9 more than 6 times n 6 more than 9 times n

3.
Which expression represents "the square of m diminished by the quotient of 35 and 5" ?

Choose:

 4. Which expressions are equivalent to 5(a + 4) ? (Check all that apply, and hit SUBMIT!) 5a + 4 3a + 3 + 2a + 1 5a + 20 3(a + 4) + 2(a + 4) 3(a + 4) + 2a

5.
Which pair of expressions are equivalent?

Choose:
 6x + 3x  and  18x a + a + a   and  a3 3(5n)  and  8n 4(2x - 3)  and  8x - 12

 6. One side of an equilateral triangle is represented by the expression 5(3a + 4) + a - 6. Which TWO of the expressions shown below can be used to represent the other two sides of the triangle? (Choose TWO, and hit SUBMIT!) 16a - 2 16a + 14 9a + 3 2(8a + 7) 5(4a - 2) An equilateral triangle has 3 equal sides.

7.
What is the value of x2 + 3y - 2z, when x = 4, y = 3 and z = 6 ?

Choose:
 5 13 29 37

8.
The area of a rectangle is expressed as 3x(5 + 2y).
What is the area of the rectangle if x = 4 inches and y = 2 inches?

Choose:
 108 sq. in. 78 sq. in. 64 sq. in. 17 sq. in.

9.
During a winter sale, skateboards are off the regular price. Which expression represents the amount of money saved on a skateboard regularly costing d dollars?

Choose:
 d + 3 d - 3 d × 3 d ÷ 3

10.
Alison buys x pounds of horse treats costing 80 cents per pound. If Alison gives the clerk a \$50 bill, which expressions represents the amount of change Alison will receive?

Choose:
 50 - 80x x - 50 50 - 0.8x 0.8x - 50