Respuesta :

watsonultra2

Step-by-step explanation:

[tex]average = \frac{a + b}{2} [/tex]

So

[tex] \frac{5 + 9}{ 2} = \frac{14}{2} = 7[/tex]

harpsickle213
The mean of something is when you:
Add the numbers together and divide by the amount of numbers you have added

5+7+9 = 21
we have added 3 numbers so you do:
21/3 = 7 ✅