70 POINTS I need help please!

Given: WY = XZ
Prove: WX = YZ

Substitution property
subtraction property
definition of congruence
transitive property
segment addition postulate

Aswimming pool had 2.5 million liters of water in it. some water evaporated, and then the pool only had 22 million liters of water in it. what percent of the water evaporated?

One x-intercept for a parabola is at the point (1,0). use the factor method to find x-intercept for the parabola defined by the equation y=-3x^2+5x+2

How to fine the value of x in geometry