What equation is equivalent to 9x - 3 = 729

What happens to the area as the sliders are adjusted? what do you think the formula for the area of a triangle is divided by 2?

If x varies directly as y, and x = 7.5 when y = 10, find x when y = 4

Given: transversal t passed through parrallel lines r and s.prove: < 3 = < 6 < 4 = < 8what is the next step in the proof? choose the most logicsl approach