If f(x) = x^(-2/3), what is the value of f(8) ?
Find the measure of an angle that is 30 degrees less than its supplement.
The perimeter of a rectangle is 74 inches. Find the dimensions if the length is 7 inches greater than twice the width.
If there were 32 people at a performance and the theater collected $474 from ticket sales, how many children attended the play?
If r = 3s + 1 and t = s - 4, then what is r in terms of t?
A rectangular photograph is twice as long as it is wide. The perimeter of the photograph is 84 cm.
Find the length and the width of the photograph.