Answer:
The answer to your question is x = 15
Step-by-step explanation:
Use proportions to solve this problem

Solve for "x"
x = 
Simplification
x = 
Result
x = 15
the first three are irrational
Then it is $19:99 per chesse piece
1 hour and 30 minutes because when you subtract those you will get that answer
Answer:
I think elimination with subtraction would be the best answer choice, since all the numbers are positive.