What do we call any ray, segment, or line that intersects an angle at its vertex and divides the angle into two equal parts?

This is the number of parts out of 100, the numerator of a fraction where the denominator is 100. submit

Jamie went to home depot.she bought 25 bags of soil that cost $9 per bag.she bought 15 pots at $8 each,and she bought 23 bags of pebbles at $15 each.she used a coupon that gave her $5 off for every 100 dollars she spent.how much did jame pay at the end?

Asap! i'm not good math and i'm lost.