0∈ 0 zero is an element of zero. true or false

What value of x is in the solution set of 4x - 12 s 16 + 8x? -10 -9 -8 -7

I'm confused on this could anyone me and show me what i need to do to solve it.

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!