Erica was playing on the elevators. She went up 6 floors, then down 2 floors. Next she went up 3 floors, then down 5 floors. If Erica started on the first floor, what floor was she on after she was finished playing?

What is the length of the segment, endpoints of which are intersections of parabolas y=x2? 11 4 x? 7 4 and y=? 7 8 x2+x+ 31 8 ?

An airplane is flying at an elevation of 5150 ft, directly above a straight highway. two motorists are driving cars on the highway on opposite sides of the plane, and the angle of depression to one car is 35 ̊ and to the other is 52 ̊. how far apart are the cars?

Grace paid $1.70 for 5 ounces of candy. how much did she pay for 24 ounces?