If 3^x/4+2=56.8, what is the value of x?

x≈6.708
x≈−4.323
x≈−2.891
x≈−2.059

Find x to the nearest hundredth place

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

The radius of a sphere is 3 inches. which represents the volume of the sphere?