A person travels by car from one city to another with different constant speeds between the pairs of cities. She drives for 30.. min at 80.0 km/h, 12.0 min at 100 km/h, and 45.0 min at 40.0 km/h, and spends 15.0 min eating lunch and buying gas. What is the average speed for the trip? What is...

A flowerpot sails first up and then down past an open window. The pot is in view for .5 sec and the height of the window (top to bottom) is 2 m. how high does the flowerpot go?

I'd like to put a 1/2 bath in my basement but I'm not sure where my drains run. A 4" drain runs down from an upstairs bath in the Northwest corner (I'll call this drain1). A second drain from upstairs also runs down in my garage (South and West of the basement). I think the sewer main is in the...