Which expressions are equivalent to −7+3(−4e−3)? Choose all answers that apply:
A −4(3e+4)
B 12e
C None of the above

(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.