Demarco wants to find the angle measures of this parallelogram. he knows that the first step is to find the value of x. which of these equations will result in the correct value of x? a. x + 15 = 6x + 4 b. 7x − 19 + 2x − 8 = 180 c. 7x − 19 = x + 15 d. 6x + 4 + 7x − 19 = 180

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