Find the sum and express it in simplest form.
(5t - 6c + 4) + (-8t + 9c)

(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.

What’s the range cuz i can’t find it?

Predict which statements are true about the intervals of the continuous function. check all that apply