Which equation is an identity?
3(x - 1) = x + 2(x + 1) + 1
x-4x + 1) = -3(x + 1) + 1
2x+3 = 2(4x + 2) + 2
(6x – 3) = 3(x + 1) - x-2

17 in long 1.3 ft wide and 8in high what is the volume

(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.

Zahra runs a 500-meter race at a constant speed. which graph shows her distance from the finish line during the race?