14/3 or 4(2/3) is the answer
You can’t answer this because you don’t know how fast the skiers goin
Sometimes but most of the time no
Answer:
or 
Step-by-step explanation:
We can convert from mixed numbers to decimal numbers:

Since they cleaned up 8.2 kilograms of trash in one neighborhood and 11.5 kilograms in another neighborhood, the total trash they cleaned up was:

We know that they sent 1.25 kilograms to be recycled. Then, in order to calculate how many kilograms of trash they threw away, we must subtract the total kilograms of trash they cleaned up and the kilograms they sent to be recycled.
Then:
or 
Answer:
a. 0 solutions b. infinite
Step-by-step explanation:
a. the two lines don't pass through each other therefore there is no solution b. the two lines are on top of each other ;) therefore there are infinite solutions.