Please solve both i will give brainliest!!! Love you in advance <3

(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.

Charlie tosses five coins.what is the probability that all five coins will land tails up.

What is the slope of the line passing through the points (-5, 7) and (-3,5)?