Acertain vending machine only accepts quarters and one-dollar bills. when emptied, the vending machine has a total of 660 combined quarters and one-dollar bills worth a total of exactly $300. how many quarters and one-dollar bills are in the vending machine when it is emptied?

If eh = hg and hg=16, find the diameter of k

You and a friend went to the movies. you spent half your money on tickets. then you spent 1/4 of the money on popcorn, $2 on candy, and $3 on a soda. if you have $1 left, hiw much money did u take to the movies?

1- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis.2- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in the first question?