21.

22

18. The outside circle is dilated to the inside circle.

The circle is getting

- and the scale factor is

A. smaller;

C. bigger; 2

B. bigger;

D. smaller; 2

What are the three screening tests you must pass in order to get your permit?

Jake paid $13.50 for admission to the county fair and bought 9 tickets to play games. If he spent a total of $36 what is the cost, c, of one ticket? Write and solve an equation.

What is the value of y in the equation y=2x-7 when x=5.

The angle between the minute hand and the hour hand on a clock is 60 degrees. What time could it be?

A GE lightbulb is supposed to last for 1,200 hours. In fact, light bulbs of this type last only 1,185 hours with a standard deviation of 70 hours.

1. Which equation represents the linear graph? A) y = 2x - 4 B) y = 2x + 4 C) y = 4x - 2 D) y = 4x + 2

Mary has $500 in her account. She makes a $350 withdrawal, deposits $100, and then gets charged a $20 fee. How much does she have in her account? A) $180 B) $230 C) $290 D) $340

A function g (x) has x-intercepts at (1/2,0) and (6,0). Which could be g (x) ? g (x) = 2 (x + 1) (x + 6) g (x) = (x-6) (2x - 1) g (x) = 2 (x - 2) (x-6) g (x) = (x + 6) (x + 2)

Roger is training for a half-marathon. The course is 13.1 miles long. Let p represent Roger's average pace in minutes per mile. Write and solve an inequality to show the average pace needed to finish the half marathon in less than 2 hours.

Find the area under the standard normal curve to the left of z = 0.49 and to the right of z = 2.05. Round your answer to four decimal places, if necessary.