You would be 7 items on the table. This is because each item has to way 1 pound and the table can hold 7 pounds.
The ratio is 2:5 yep
hope it helps how do you know?
X:{a, b, c}, because the numbers(or letters in this problem) cannot repeat.
It does not make sense, because 4 is not a prime number. If it would have been 2*2*11 then it would have been correct.