If two linear equations have infinitely many equations then what ?

The value √10 and √15 are plotted on the number line

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?

Lola says these two expressions have the same value. expression a expression b which explains whether lola is correct?