Plsss hurryyy Serena wants to wrap ribbon around the edge of the picture frame represented in the drawing. uhh picture of rectangle top says 3.5x-7 and side says x + 0.4 Which is the simplified form of the expression representing the length of ribbon Serena will need?
A. 9x – 13.2
B. 4.5x – 6.6
C. 9x – 14.8
D. 2(3.5x – 7) + 2(x + 0.4)

(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.