In the following problem, which constraint is redundant?

Max: 3X1 + 2X2
Subject to: 3X1 + 3X2 ≤ 300
Constraint 1: 6X1 + 3X2 ≤ 480
Constraint 2: 3X1 + 3X2 ≤ 480
Constraint 3: X1 , X2 ≥ 0

Gabrielle's age is two times mikhail's age. the sum of their ages is 84. what is mikhail's age?

Math question.. plz me .. best answer all

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.