A population of bacteria doubles every 15 hours. Initially, the population of bacteria is 40. what is the population of bacteria after 40 hours?

Yesterday, george drank 1 small bottle and 2 large bottles, for a total of 1,372 grams. the day before , he drank 1 small bottle and 1 large bottle, for the total of 858 grams. how many grams does each bottle hold?

Let f(x) = 5/x and g(x)=2x2+5x. what two numbers are not in the domain of f o g

X^2/100+y^2/25=1 the length of the major axis is: a)5 b)10 c)20