True of false a - b = a - (-b)

Adam used 1072.4 gallons of water over the course of 7 days. how much water did adam use, on average, each day?

(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.

If cos(θ)=2853 with θin q iv, what is sin(θ)?