How much profit will the business make on the sale of a couch that is marked up by 1/3 and then sold at a 1/5 off discount if the original price is 2,400

Which is the product of 58 and 1,000? a. 0.058 b. 5,800 c. 58,000 d. 580,000

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?

What is the slope of the line shown below?