One airplane is approaching an airport from the north at 205 km/hr. A second airplane approaches from the east at 257. Find the rate at which the distance between the planes changes when the southbound plane is 27 km from the airport and the westbound plane is 19 km from the airport.

Arestaurant manager wanted to get a better understanding of the tips her employees earn, so she decided to record the number of patrons her restaurant receives over the course of a week, as well as how many of those patrons left tips of at least 15%. the data she collected is in the table below. day mon tue wed thu fri sat sun patrons 126 106 103 126 153 165 137 tippers 82 87 93 68 91 83 64 which day of the week has the lowest experimental probability of patrons tipping at least 15%? a. sunday b. saturday c. friday d. thursday