Asmall plant is  212212  inches  tall. how tall will it be in  33  weeks if it grows  3434  inch each week? which method will not give the correct number of  inches?
a. multiply  2 1/2×3, and then add  3/4.
b. multiply 3×3/4 and then add 2 1/2
c. add 2 1/2+3/4+3/4+3/4
d. multiply 3/4 × 3 and then add 2 1/2

(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.