Trevor stated that (4, 0) is the solution to the system of equations. Joey stated that (0, –2) is the solution to the system of equations. Which conclusion is true?

On average, how many more hits will he get when he bats 100 times at home during the day as opposed to 100 times away at night?

Two customers went to a post office. first customer paid $12 for 14 and 5 envelopes the second paid 24.80 for 10 postcards and 15 envelopes. what is cost of each envelope?

Acoin bank containing only dimes and quarters has 12 more dimes than quarters. the total value of the coins is $11. how many quarters and dimes are in the coin bank?