It cost 2.10 for a gourmet coffee shop to make a small latte. The price of a small latte is 2.94.What is the percent markup on the latte

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?

An arithmetic series a consists of consecutive integers that are multiples of 4 what is the sum of the first 9 terms of this sequence if the first term is 0

Plot a point at the y-intercept of the following function on the provided graph. 3y=-5x+7 20 points