I drive down the highway. At 6PM im going 60km/h. At 8pm the dashboard says im going at 100km/h. What is my average acceleration from 6-8pm. (in km/h^2) Physics

Bill works as a waiter and is keeping track of the tips he ears daily. about how much does bill have to earn in tips on sunday if he wants to average $22 a day? tips by day tips (dollars) monday tuesday wednesday thursday friday saturday $14 $22 $28 $36

The? half-life of a radioactive substance is 20 years. if you start with some amount of this? substance, what fraction will remain in 120 ? years

Look at triangle wxy what is the length (in centimeters) of the side wy of the triangle?