Solve the equations: 1.3x–2−(3.3x+5)=2x+1

One of the same side angles of two parallel lines is 20° smaller than the other one. find the measures of these two angles.

Write the following as a base and exponent

(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.