Which of the following ordered pairs represents the solution to the system given below?

x − 3y = 12
2x + 6y = 60

(0, −4)
(12, 0)
(3, 21)
(21, 3)

Aculture started with 4,000 bacteria. after 5 hours, it grew to 5,200 bacteria. predict how many bacteria will be present after 19 hours. round your answer to the nearest whole number.

Determine if the equation defines y as a function of x: 2xy = 1. yes o no

According to the general equation for conditional probability if p(anb)=3/7 and p(b)=7/8 what is p(a i b)