A telephone company charges $0.12 megabyte of data after a connection fee of $1.50. Find the total number of megabytes used if the cost was $7.14. Choices are:

62 megabytes
47 megabytes
40 megabytes
28 megabytes

Which one is the answer? The answer has to be one of the choices.

(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.