Unit 7 polygons hw 2 parallelograms Please need this by tonight will give if it is all right

Ineed with number 6 , explain how to get 1978

If f(x)= sqrt4x+9+2, which inequality can be used to find the domain of f(x)?

(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.