Bruno bought 3 cases of water for a party. guests used 9 bottles of water from each case. write and solve an equation to find how many bottles of water were initially in each case if there were 21 bottles left over

For each sentence below, find the value of x that makes each sentence true. (515) 5 = 25* x= (813)2 = 4* 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.

Solve the following pair of equations for x and y: ax/b_ by /a= a +b; ax - by = 2ab