There are 7 students stirring on the bleachers and 15 students stirring on the floor . what is the ratio of the number of students sitting on the floor to the total number of students

Jacob signs up to work for 2 1/2 hours at the school carnival. if each work shift is 3/4 hour, how many shifts will jacob work? (i just want to double check : |, for anybody that responds! : )

The measure of an angle is 117°. what is the measure of a supplementary angle?

Can you me find the missing length. i attached an image.