Your classmate showed their thought process to the problem below. However, They made a mistake. What mistake did they make? Describe it below.

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 square root of 9x plus 7 plus the square rot of 2x equall to 7

Combine like terms to make a simpler expression 3z+z