Answer:
At the time measurement starts i.e. initially there was no rainfall i.e. y value is zero.
Step-by-step explanation:
y, in terms of time the rain fell, x.
Now, x is measured in hours after 12 : 00 P.M., with x = 0 corresponding to the time 12 : 00 P.M.
Therefore, the ordered pair (x,y) ≡ (0,0) means that at the time measurement starts i.e. at 12 : 00 P. M. there was no rainfall i.e. y value is zero. (Answer)
This is Simple, Just Subtract Time taken by Science homework from time taken by Maths homework..

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Answer:
This is not possible with 2 equal symbols
I hope it helps you get it right
A. you will have a 70% chance of getting a red fish.
B. there are 60 fish in the tank total