What is the solution to the system of equations below?
x + y + z
Y + z = 10
z = 1

What is the slope simplify your answer and write it as a proper fraction, improper fraction, or integer

Prove that the value of the expression 7^8–7^7+7^6 is divisible by 43.

(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.