Final Review- Pre-Algebra

The population of the United States is about 3.1 × 10⁸ people. What is this number written in standard form?

• 3,100,000

• 31,000,000

• 310,000,000

• 3,100,000,000

A hotel shuttle service charges $7.50 plus $0.85 per mile. A customer hires a shuttle, and the total charge is $12.60. Which equation can be used to determine the number of miles from the hotel to the airport?

• 0.85m + 7.5 = 12.6

• 7.5m + 0.85 = 12.6

• 8.35m = 12.6

• 6.65m = 12.6

Between which two integers does √42 lie on the number line?

• between 5 and 6

• between 6 and 7

• between 7 and 8

• between 8 and 9

Which of the following is equivalent to 2^-4 ?

• -16

• -8

• 1/32

• 1/16

A marching band has 64 members. The band director wants to arrange the band members into a square formation. How many band members will be in each row?

• 8

• 7

• 6

• 5

What is the value of v in the equation below?

3(2v + 1) = -15(5v + 16)

• 13/81

• 5/27

• -2

• -3

What is the constant rate of change of the function represented in the table?

• 2

• 3

• 5

• 6

What is the slope of the line that passes through points R(0, 2) and T(-3, -4)?

• 2

• 1/2

• -1/2

• -2

Robert has $220 in his savings account. He plans to save an additional $15 each month. Which function can Robert use to determine how much he will have saved s after m months?

• s(m) = 220m + 15

• s(m) = 235m

• s(m) = 15m + 220

• s(m) = 15m

The slope of a line is -3 and the y-intercept is (0, 4). What is the equation of the line in slope-intercept form?

• y = - 1/3x + 4

• y = 1/3x - 4

• y = 3x + 4

• y = -3x + 4