The radius of a circle is 15 inches.

Enter the area of the circle, in square inches. Round your answer to the nearest tenth and use 3.14 for pi.

square inches

Suppose y varies directly with x. write a direct variation equation that relates x and y. then find the value of y when x=12 y=7 when x=3

Which expression is equivalent to 64 - 9x^2?

6. sarah saved $12.75 every week for a number of weeks, w. she received an additional $25 during the last week in which she saved money. write and solve an equation to find the number of weeks, w, for which sarah had saved money if she has $114.25 now.