800÷12=66.6666666667
hope it helps!
btw that my actual answer. it really long.
Answer:

Step-by-step explanation:
Since there are 18 inches of snow already, 18 is our constant term in the function. Then, we describe x to be the number of hours that it snows for. We multiply this by 4 to find how many inches of snow fell during those hours. We add this term to the constant term to get the solution to y or 
Step-by-step explanation:
60°
is the answer
hope is helpful
Answer:
x=-15.2
Step-by-step explanation:
20cm^2 assuming that each box is one cm