Brian ate 1 5 of a pie. then colin ate 1 5 of the pie, and david ate 1 5 of the pie. how much of the pie was left?

An energy plant is looking into putting in a system to remove harmful pollutants from its emissions going into earth's atmosphere. the cost of removing the pollutants can be modeled using the function c = 25000p/100 -p what is the vertical asymptote?

Which equation represents the line that passes through the points and (4, 10) and (2, 7)? y = 3/2x - 11y = 3/2x +4y = - 3/2x + 19y = - 3/2x + 16

Can someone pls ! pls answer all. no explanation needed..