1. At noon a passenger train leaves the Columbus Railway station and travels due west for 2 hours. At 12:15 PM the same day a second passenger train leaves the same railway station and travels due east
for 1 hour and 45 minutes at a speed 12 km per hour slower than the first passenger train. At 2:00 PM
the two trains were 297.75 km apart. How fast had each train been traveling?

Colby and jaquan are growing bacteria in an experiment in a laboratory. colby starts with 50 bacteria in his culture and the number of bacteria doubles every 2 hours. jaquan starts with 80 of a different type of bacteria that doubles every 3 hours. let x equal number of days. colbys experiment follows the model: a.) y=50*2^x b.) y=50*2^8x c.) y=50*2^12x jaquans experiment follows the model: a.)80*2^x b.)80*2^8x c.)80*2^12x

If the cost to mail a package is an initial $5 and $0.28 for every pound the total cost to mail a package was $11.27, how much did the package weigh?

Find the distance between (0,5) & (-4,2)