Ahiker in death valley begins the climb out of the valley from 150 feet below sea level. 5 minutes later the hiker is at 87.5 feet below sea level.
answer the questions above, .
worth 30 points

The pyramid below was dissected by a horizontal plane which shape describes the pyramid horizontal cross section

The roots of the function f(x) = x2 – 2x – 3 are shown. what is the missing number?

(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.