Three fifths of the cast in a musical have to sing what fraction of the cost is not have to sing?

Askateboard ramp is in the shape of a right triangle what is the height of the ramp

(c) the diagram shows the first three shapes of a matchsticks arrangement. first shape = 3second shape = 5third shape = 7given m represents the number of matchstick used to arrange the n'th shape.(i) write a formula to represent the relation between m and n. express m as the subjectof the formula.(ii) 19 matchsticks are used to make the p'th shape. find the value of p.

Write as a product: ac^2–ad+c^3–cd–bc^2+bd