If the radius of a circle is twice as great as the radius of a smaller circle, how many
times as large will the area of the greater
circle be than the area of the smaller circle?

Find the solution of this system of equation -7x+y=-20 9x-3y=36

Change negative exponents to positive. then solve. round to four decimal places

Acommunity group is building a garden on a rectangular lot of land. the lot measures 5x by 10x and the garden will be circular with a radius of 3x. how much of the land will be left over after the garden is built? a. 41 pi x^2 b. x^2 (50 - 9 pi) c. x^2 (50 - 3 pi) d. 41x^2