What is the measure of AC? I need a step by step explanation because it's not edge it's a worksheet​

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

How do i put 3(x+7) in distributive property

Divide. –4.2 ÷ 6 = a –0.7 b 0.7 c –7 d 7 me