Explain why the graph of the profit function can fall below the x-axis and that would mean if it did. PLEASE NO FILES I CANNOT OPEN THEM

Donald has x twenty-dollar bills and 11 ten-dollar bill. how much money does donald have? write your answer as an expression.

Find the nonpermissible replacement for binthis expression.b2/5b +5

You're locked out of your house. the only open window is on the second floor, 25 feet above the ground. there are bushes along the edge of the house, so you will need to place the ladder 10 feet from the house. what length ladder do you need to reach the window?