Answer:

Step-by-step explanation:
24 + 4y = 12y
- 4y - 4y
__________

I am joyous to assist you anytime.
The unit rate would be 3 trucks per 1 hour you can find this by dividing 18 and 6 by 6
Answer:
9. No
10. Yes
Step-by-step explanation:
The first one is not, since you have (3, 3) and (3, 9). In a function, each x maps to a single y.
The second one is since every x appears only once.