Please Select the expression that correctly calculates the perimeter of this shape. 7 cm 7 cm​

Look at the chart showing the results of a baseball player at bat. which is the probability of getting a hit?

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.

Ineed the solution to this problem and the steps.