Write 2.5 as a mixed number pls faster

In which figure is de bc ? a. figure 1 b. figure 2 c. figure 3 d. figure 4

What is the area of triangle abc if a = 8, b = 11, and c = 15?

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