15pts! its only worth 10pts but i will give away 15pts not 12pts, not 13pts but now! emergency!

(a) solve h+2/6 = h-3/4(b) solve the following simultaneous equations. 2x = y + 66x - 2y = 13x = ? y = ?

Find the zeros of each function. f(x) = 6x^2 - 7x - 20

The olympic-size pool at the recreational center is a right rectangular prism 50m long and 25m wide. the pool contains 3000m of water. how deep is the water in the pool?