2.) At midnight the temperature was -6 degrees. By 4 a.m. the temperature had fallen to -16 degrees. What is the change in temperature?

In 2005, you have 70 songs in your favorite iTunes playlist. In 2007, you have 140 songs. In 2010, you have 70. Enter the exact answers. (a) What is the average rate of change per year in the number of songs in your favorite iTunes playlist between 2005 and 2007? The average rate of change is 35 (b) What is the average rate of change per year in the number of songs in your favorite iTunes playlist between 2007 and 2010? The average rate of change is 23 songs per year. The average rate of change is 0 songs per year. (c) What is the average rate of change per year in the number of songs in your favorite iTunes playlist between 2005 and 2010? songs per year.

Karla picks up her friend who lives in another city and they head north on a road trip. Karla looks at a map and sees that after 5 hours of driving, they are passing mileage marker 352 on Highway 277. After driving for 12 hours, they pass mileage marker 842. What is Karla's average rate during the road trip? miles per hour

A student found the average boat price for 14 boats in a doc was 250,000. Two more boats were later added. The two new prices were worth 600,000 and 750,000 what was the new average price?

(-0.5) + (-4.3)

how did you get x=100 and y=300 at the end