A rectangle has an area of 150 square units. The width of the rectangle is 10 units and its length is x units longer than its width.
Solve the equation 150 = 10(x + 10) to find the value of x.

(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.