Yes, u are correct, hope this helped
3x+15 , this expression correctly combines the like terms
Answer:
A
Step-by-step explanation:
Answer:
50
Step-by-step explanation:
Use this equation

where b is arc VY, A is arc XV.
Substitute the equation in




so our arc measure is 50
Not addition, since

and 0 doesn't belong to the set.
Not subtraction, since

.
It is closed under multiplication. The set appears to contain all non-zero multiples of 3.
Not division, since dividing some of the numbers results in rationals which do not belong to the set.
What other operations are you supposed to consider?