A college student takes the same number of credits each semester. She had 15 credits when she started, and after 4 semesters, she had 71 credits. Which of these expresses the rate at which she is earning credits?

To complete your spring schedule, you must add calculus and physics. at 9: 30, there are three calculus sections and two physics sections; while at 11: 30, there are two calculus sections and three physics sections. how many ways can you complete your schedule if your only open periods are 9: 30 and 11: 30?

Which sentence describes why polygon mnop is congruent to polygon jklp? a. polygon jklp maps to polygon mnop through a translation. b. polygon jklp maps to polygon mnop through a rotation. c. polygon jklp maps to polygon mnop through a dilation. d. polygon jklp maps to polygon mnop through a stretch.

Another type of subtraction equation is 16-b=7. explain how you would sole this equation then solve it.