Please help. i’ll give 20 pt + brainliest.

help with 16 and 17

Twice the sum of a number and 4 is equal to three times the difference of the number and 7. find the number.

Adriveway is 40 yards long about how many meters long is it

(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.