Which variable is most important to the following problem?
a taxi service charges $2.50 plus $1.75 per mile. a rideshare service charges
$4.00 plus $1.25 per mile. how much would it cost megan to travel 12 miles
in a taxi?

a. the cost of the rideshare service

b. the average speed of the car while megan travels

c. the difference in the costs of the two services for a 12-mile ride
oh d. the cost of the taxi service

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?

How is this equation completed? i cannot find any examples in the book.

Hi i’m not sure how to do question 20 if u could explain how to do it that’d b great