Oprah makes $159.00 per day plus an additional 6% commission on her sales. which equation could be used to find how much oprah made in one day, r, if she sold x dollars worth?
a.0.06x + $159.00 = r
b.0.06x - $159.00 = r
c.6x + $159.00 = r
d.159x - $6.00 = r

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