Segment cd is the perpendicular bisector of ab at e, which pair of segments does not have to be congruent

Hardest math question of all time can you solve the equation. check for extraneous solutions.9∣9-8x∣ = 2x+3

Could somebody me with this radical simplification?

Luis has a cooler filled with cans of soda.for every 5 cans of coke there are 3 cans of sprite.if there are 25 cans of coke, how mant cans of sprite are there?