8.75x-2 i need help please

Which number produces a rationale number when multiplied by 1/5

Write the point-slope form of the line passing through (2, -12) and parallel to y=3x.

(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.