Bacteria can multiply at an alarming rate when each bacteria splits into two new cells, thus doubling. if we start with only one bacteria which can double every hour, how many bacteria will we have by the end of one day?

-2

7 - 9 = -2

reversed:

-2 + 9 = 7

answer: bea's uncle is 25 years old.

step-by-step explanation:

given the equation , we can say that the variable "x" represents the age of bea's uncle. then to find his age, we need to solve for "x":

we must add 15 to both sides of the equation:

now we need to divide both sides of the equation by 3:

therefore, we can conclude that bea's uncle is 25 years old.

the second option

step-by-step explanation: