The McMillans noticed that the amount of natural gas they use at their house each month is related to the average monthly temperature

Acollege is planning to construct a rectangular parking lot on land bordered on one side by a highway. the plan is to use 680 feet of fencing to fence off the other three sides. what dimensions should the lot have if the enclosed area is to be a maximum?

Which graph represents the solution set for the given system of inequalities? x+2y< 3 x+y> 4 3x-2y> 4

Which is the equation of a line perpendicular to the line with the equation 3x+4y=8