HELPP SOMEONEEE pls

The general form of the quetion of a circle is ax^2+by^2+cx+dy+e=0 where a=b=0 if the circle has a radius of three units and the center lies on the y axis which set of values of a, b, c, d, and e might correspond to the circle

Which expression is equivalent to 8(k + m) − 15(2k + 5m)?

Sasha drank 8 bottles of water everyday for a week. how many bottles of water did she drink in total?