Can someone answer this please ?

In the diagram, the measure of angle 9 is 85° which angle must also measure 85°?

If a || b and b | y, then ? a) x || y. b) x | a. c) a | y. d) a || y.

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?