21. A delivery driver drove south 230 km from Sawpit to Gassville. He then turned around and drove back north for 71 km to Mount Carmel. The total trip took 9 hours What was the delivery driver's average speed?"
Average speed
km per hour
"Round your answer to two decimal places if necessary

An open cart is moving along a straight frictionless horizontal track. when rain starts falling vertically into the cart, what happens to the speed of the cart?

What is a possible result of higher air temperature caused by global warming

Although longitudinal waves can travel through all media types what is the disadvantage of this type of wave transmission? a) he efficiency of he wave transmission is greatly diminished as the media becomes less dense b) the oscillation of one set of particles has a huge impact on neighboring particles c) particles become too close together as they bump into each other making it more likely to hit other particles down the line