11. A bike rental company rents beach bikes. They charge an initial fee plus $1 for each
hour the bike is rented. Chet rented a bike for
6 hours and was charged $10. Let x represent
the number of hours and y represent the total
cost of the rental.
a. What is the slope-intercept equation of
the line that fits this information?
b. If another customer rents a bike for 4
hours, how much should he expect to pay?

2y= 3 2 x−2 y = − 1 3 x + 1 y=− 3 1 x+1

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?

1) you deposit $2,500 in an account that earns 4% simple interest. how much do you earn in eight years?