Math is garbage and it sucks please help before I smash my laptop with a brick

What are the relative frequencies to the nearest hundredth of the columns of the two-way table?

Which of the following vectors are orthogonal to (2,1)? check all that apply

Plz hurry finals a paper cup in the shape of an inverted cone is 8 inches tall and has a radius of 1.5 inches. how much water can the cup hold? use 3.14 for pi. round the answer to the nearest tenth. a) 12.6 cubic in. b) 18.8 cubic in. c) 37.7 cubic in. d) 56.5 cubic in.