Which expression is equivalent to 1/2(2n + 6)?

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

Which measure is equivalent to 110 ml? 0.0110 l 0.110 l 1.10 l 11,000 l

Which shows one way to determine the factors of 4x3 + x2 – 8x – 2 by grouping?