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Circumference
Area
Slope
100
What is the formula to find the circumference of a circle?
2r*pi or d * pi
100
What is the formula to find the area of a circle?
r^2 * pi
100
What is the general y-intercept formula for a line?
y=mx+b
200
Find the circumference of a circle with diameter of 27 cm.
approx. 84.78 cm
200
What is the area of circle with radius of 9 in?
approx. 254.5 in^2
200
What is the slope in the equation

y = 5x - 2

5
300

Find the circumference of a circle with a radius of 3 inches.

approx. 18.84 inches
300
What is the area of a circle with diameter of 15 m?
approx. 176.7 m^2
300
What is the slope in the equation

y = (1/3) x + 4

1/3
400

The diameter of the earth at the equator is about 7926 miles. If you were to travel all the way around the earth at the equator, how many miles would you travel?

approx. 24,900 miles
400
What is the area of a circle with a circumference of 314 cm?
approx. 7846 cm ^2 (within 10 cm)
400

Joe is downloading songs from the Internet. He can download them at a rate of 8 songs every 10 minutes.

Jasmine, who is also downloading songs, can download at a rate of 12 songs every 15 minutes. Who is downloading songs faster? 

 Neither, (8/10) = (12/15)

500
What is the circumference of Mars if the diameter is 4,212 miles?
approx. 13,232.39 miles
500
What is the area of a circle with a circumference of 238 cm?
approx. 4507.59 cm^2 (within 10 cm)
500
What is the slope of the line that goes through the points (0,3) and (2,-1)?
-4/2 = -2