What is 198 g + 334.6 g, rounded to the proper number of significant figures?

correct answers below:

my guess would be b and d, but i didn’t actually get out the pen and paper. lol

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.