Ascientist begins an experiment with a culture of 5 bacteria cells. every hour, the number of bacteria cells triples. which equation can be used to represent the number of bacteria cells, y, as it relates to time in hours, x?

y=5^x
y=3(5)^x
y=3^x
y=5(3)^x

What is the prime factorization of 23 ?me with this question

Billy plotted −3 4 and −1 4 on a number line to determine that −3 4 is smaller than −1 4 .is he correct? explain why or why not

Sanya noticed that the temperature was falling at a steady rate of 1.4 degrees every hour from the time that she first checked her outdoor thermometer. by 6 a.m., the temperature had fallen 21 degrees. which expression can you use to find how many hours earlier she had first checked the thermometer?