Solve the following system of equations:
3x + 4y = 5
x-2y=3

Which function is represented by the graph

Your food costs are $5,500. your total food sales are $11,000. what percent of your food sales do the food costs represent?

(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.