Meaghan goes to the grocery store to buy hot dogs and hamburgers for a cookout. She buys a total of 10 packages for a total of $33.90. If a package of hot dogs, d, costs $2.79 and a package of hamburgers, b, costs $5.79, determine how many packages of each she bought. Pls hurry i need it before school is over
will mark brainelest

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.