Which are unit rates? (identify all).
a) 8ft per minute
b) 4bus drivers to 120 students
c) 50 votes out of 100 votes
d) 20 grams of protein in 1 serving

Janet drove 300 miles in 4.5 hours. write an equation to find the rate at which she was traveling

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

Prove that (x-2)is factor of p (x)=2x³-3x²-17x+30