The average of 2 3 and what number is 10?
pls help

Average of three numbers is = 12

So sum of three numbers is = 12+12+12 = 36

Sum of two numbers = 15+10 = 25

Third number = sum of three numbers - sum of two numbers

= 36–25 = 11

Third number is 11 ans.

Step-by-step explanation:

the answer is b. 60. each interior angle in 120, so the exterior angle must be 60 in order to add up to 180

step-by-step explanation:

i believe that the answer is

b. y-1=-2(x-4)

hope this !