Find the Arc / Angle Measures for each problem.

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 statement justifies why angle ebc measures 90?

Abus travels 36 miles in 45 minutes. enter the number of miles the bus travels in 60 minutes at this rate.