What does t represent in the first and second expressions? VolTank1 = 300 + 25, and VolTank2= -20t + 1000

Which point is on the line y=-2+3? (-2,-1) (3,3) (3,-3) (-3,-9)

The length of a field is 100 yards and its width is 75 yards. if 1 inch represents 25 yards, what would be the dimensions of the field drawn on a sheet of paper?

The coordinates r(1, -3), s(3, -1) t(5, -7) form what type of polygon? a right triangle an acute triangle an equilateral triangle an obtuse triangle