Just keepin it simple. can you me with this problem.

Ben bowled 124 and 188 in his first two games. what must he bowl in his third game to have an average of at least 160?

Kathy spent 5/8 of her money on books and another 1/6 of her money on stationeries.what fraction of kathy’s money was left?

The formula for finding volume of a cone 1/3pi x r^2h. the volume of a cone is 300 cm^3 and the height of the cone is 10 what is the approximate radius of the cone