Answer:
Step-by-step explanation:
8 is not a function
9 is a function
10 is a function
Answer:
x+y
Step-by-step explanation:
Let's pretend the value of the crayon's is 'y'. The value of the markers is 'x'. If we add them together, we get x+y. This is because we do not know the value of each variable.
Hope this helps! Have a nice day <3
Answer:
Step-by-step explanation:
(2x+4)° + 42° = 180°
x = 67°
If C is between A and B, then, we can write the equation

Substitute the value of AB and the expressions for AC and CB in terms of x.

We can now solve for x.


Dividing by 5.








It's subtraction or multiplacation