A classroom has 35 students. If the ratio of boys to girls was 5:2, , how many girls were in the class

Find the value of the cosine for angle a

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

What is the value of x? enter your answer in the box.