I have no idea how to do it

Write an equation of the line that passes through 9,2 and is parallel to the line y=5/3x+9

Graph the system of equations. {6x−4y=−244x−8y=−32 use the line tool to graph the lines.

The volume of a spherical hot air balloon v(r) = 4 3 ? r3 changes as its radius changes. the radius is a function of time given by r(t) = 3t. find the instantaneous rate of change of the volume with respect to t at t = 2.