A system of linear equations is graphed on this coordinate grid.
What is the solution to the system of equations?
A
(−0.67,2.25)
B
(1,5)
C
(2,9)
D
(2.25,2)
(If correct will you give brainliest)

Find the volume of the largest rectangular box in the first octant with three faces in the coordinate planes and one vertex in the plane x + 2y + 3z = 15.

Jamie is hiking up a small mountain. he climbs up at a constant rate of 300 feet/hour until he reaches the peak at 1,500 feet. after that, he hikes down at the same rate to the base of the mountain. the equation that models jamie’s elevation, e, after t hours is e = . jamie’s elevation will be 600 feet after hours and after hours.

Anyone know? is appreciated! will mark brainliest if correct!