The total amount of sodium in 2 hot dogs and 3 cups of cottage cheese is 4,720mg. the total amount of sodium in 5 hot dogs and 2 cups of cottage cheese is 6,300mg. how much sodium is in a hot dog? how much sodium is in a cup of cottage cheese?

Acircle has the equation (x-2)^2 +y^2 =5. what are the coordinates of the circle's center?

Tom had a total of $220 and he spent $35 on a basketball ticket . what percent of his money did he have left?

1- is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis. 2- 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. 3- 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 part b?