4.8 plus 3.15 for 6th grade

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

Why do interests rates on loans to be lower in a weak economy than in a strong one

Can anyone me with 32,33,36,37,and 40.