Greg is opening a car wash. he estimates his cost equation as c = 9000 + 0.09x and his revenue equation as r = 1.85x, where x is the number of cars washed in a six-month period. find the number of cars that must be washed in a six-month period for greg to make a profit.

Alake near the arctic circle is covered by a 222-meter-thick sheet of ice during the cold winter months. when spring arrives, the warm air gradually melts the ice, causing its thickness to decrease at a constant rate. after 333 weeks, the sheet is only 1.251.251, point, 25 meters thick. let s(t)s(t)s, left parenthesis, t, right parenthesis denote the ice sheet's thickness sss (measured in meters) as a function of time ttt (measured in weeks).

How do you find principle and simple interest

Eis the midpoint of line segment ac and bd also line segment ed is congruent to ec prove that line segment ae is congruent to line segment be