Which expression can be used to find the surface area of the following cube?

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

Find the value of x for which abcd must be a parallelogram -9-6x x-30

What is the 12th term of b(n)=-4-2(n-1)