You purchase a $220 airline ticket. You have a discount code to recieve 10% off. There is a 12% service charge added to the total. How much would you pay, in total, for you ticket? ( show all work pls)

Can someone me my sister? she is in third grade. 50 points and brainlist! ones that are not answered. plz and thx!

The equation respenting the left table is

(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.