There were 9068 people at a concert. an equal number of people sat in each of 4 sections. how many people sat in each section?

You eat $0.85 for every cup of hot chocolate you sell. how many cups do you need to sell to earn $55.25

Grace is standing 18 feet from a lighthouse and kelly is standing 10 feet from grace. the angle that grace looks up to see the top of the lighthouse is 45°. the angle that kelly looks up to see the top of the lighthouse is y°. find the height, h, of the lighthouse. find the angle, rounded to the nearest tenth of a degree, in which kelly looks up to the top of the lighthouse. to the nearest tenth of a degree, find the value of x° . in two or more sentences, explain your calculations

Can someone tell me if these are correct?