53. There are n arithmetic means between 40 and 144 such that 4th mean :nth mean is 2:5. The common difference is (a) 2
(b) 3
(c) 4
(d) 5​

Solve by any method (graphing, substitution or linear combination)y = x - 82x + 3y = 1a) (2, -6)b) (5, -3)c) (4, -4)d) (0, -8)i figured it out. the answer is (5, -3)

Areflection of shape i across the y-axis, followed by a , and then a translation left 6 units and down 4 units confirms congruence between shape i and shape ii. alternatively, a of shape ii about the origin, followed by a reflection across the y-axis, and then a translation right 4 units and up 6 units confirms congruence between shape ii and shape i.

Find an equation of variation where y varies directly as x and y 75 when x5, findy when x is 1