6x-29=5x-7 what does it equal and show work

Can you me find the missing length. i attached an image.

Find the measure of angle y. round your answer to the nearest hundredth. ( type the numerical answer only) a right triangle is shown with one leg measuring 5 and another leg measuring 14. an angle across from the leg measuring 5 is marked y degrees. numerical answers expected!

Find the volume of the wedge cut from the first octant by the cylinder z=12-3y^2 and the plane x+y=2.