Pretty please help!

Here is ΔABC. Line DE is parellel to line AC. what is m∠DBA + b + m∠CBE? Explain how you know

Step-by-step explanation:

Supplementary angles.

because we two lines are parellel and ac is a straight line so de is also a straight line(meaning it is 180°)

and because all of them are on the same line they are equal to 180°

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.