There are 6 green marbles, 11 blue marbles, 7 red marbles, and 8
orange marbles in a bag. Three
marbles are selected and marbles
are NOT replaced. What is the
probability of selecting a green
marble, then a red marble?

Step-by-step explanation:

green: 6/4

red: 7/4

this is all i know

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.