Find the area of a circle with a circumference of 2pi

One pack 30 pencils is 7.97 and the other pack of 12 pencils is 4.77 which is the better buy? and why?

The three largest islands in canada are all north of the arctic cirlce. baffin island has about 2 1/3 times the area of victoria island.

What is the slope of a line with the equation 3y = - 6x + 9?

A result of Japan s attack on Pearl Harbor was A, the US formed a pact with Indochina against Japan. b. the US formed a pact with Germany against Japan. c. thousands of Americans died, and the US declared war. d.

One side of a triangle is 2 cm shorter than the base. The other side is 3 cm longer than the base. What lengths of the base will allow the perimeter to be greater than 19 cm?

Imagine you live only one mile from work and you decide to walk. If you walk four miles per hour how long will it take you to walk one mile

Travis and his three friends went to dinner to celebrate graduation. The guys decided to divide the bill evenly. Each person paid $15. Which equation can be used to find the total amount of the bill? x/3=15 15x=3 x/4=15 15x=4

A parabola has the equation y=x^2-x-6. A line has a slope 2 and y-intercept - 2. Think of the system of equations that you can create with this information. What is a good strategy to use in order to solve the system or equations?

Evaluate a2+ab-b2+5 when a=2 and b=3

Which of these is a two-step equation? A. X+9 = 21 B. x = 11 + 2 C. 2x+9 = 21 D. x/3=9