I need help ASAP 14 points! And I will mark you

For one history test, keith had to answer 40 questions. of these 40 questions, keith answered 28 of them correctly. what percent did keith get on his history test? round your answer to the nearest tenth if necessary

Given that ot =5, xt=12, and ox= 13 is xy tangent to circle o at t? explain.

Which translation maps the vertex of the graph of the function f(x) = x2 onto the vertex of the function g(x) = x2 – 10x +2?