A school paid 31.50 for each calculator If the school bought x calculators, how much did
they pay? Write an expression.

Find the required measurements of the following trapezoids. a = 8 cm b = 16 cm h = 10 cm

What is the rate of change of a line that passes through (2,-5) and (6,-2)?

(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.