Note that mailing address is unique, but houses are not, meaning that you can't have house A and house B both referencing the same address.
So, in order to have a valid function, any two points on the function cannot have the same x value that lands on different y.
With this property mentioned, it's clear to see that
(house, address) is NOT a function; however, (address, house) is a function, since same x lands on multiple y values is a valid onto function. (a house that have multiple addresses)
Answer: 4.2 cups
Step-by-step explanation: 63 divided by 15=4.2
40 ????????????????????????????
Answer:
Yes since 40+30=70 so it would be the same
Step-by-step explanation: