Aprofessor determined the relationship between the time spent studying (in hours) and performance on an exam.

performance = 70.443 + 4.885 * (time)

ann studied 2.6 hours for the last exam. however there was a concert in town the night before and her score was 16 points lower than expected. what was her score on this exam, rounded to the nearest integer?

Three students, javier, sam, and corrine, participated in a fundraiser where people donated a certain amount of money per lap that the student ran. each student also had some initial donations that were collected before the run. the equations that represent each student's total donation, y, based on the number of laps ran, x, is shown below. match each equation with the correct rate of change for that student.

Apply the distributive property to simplify the expression. −4(5x + 2)

Hilary decided to purchase 3 points in order to lower her interest rate on her $140,000 mortgage. how much additional money does she need to bring to closing? a. $4200 b. $4000 c. $6 d. $400