Anna went scuba diving and reached a depth of 28 feet below sea level. What is the absolute value of the depth that she reached? A 82 feet
B -28 feet
C 28 feet
D 1/28

(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.