Brody is in the business of manufacturing phones. He pays a cost of $100 per phone produced for materials and labor and also must pay a daily fixed cost of $200 to rent the building and equipment. Make a table of values and then write an equation for C, C, in terms of p, p, representing total cost, in dollars, of producing pp phones in a given day. C=

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?