If rb = 4 and or = 3, then ob = 5 7 2√3

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 expression is equivalent to7_/x^2 ÷ 5_/y^3? assume y# 0

For a field trip to the zoo, 4 students rode in cars and the rest filled nine busess. how many students were in each bus if 472 students were on the trip