Is x/y is rational, must x and y each be rational

The function f (x) = 600+2x/x yields the average cost in dollars for a company to produce x calendars. Which statement best fits the situation modeled by the function?

What is the domain and range for { (0,-5), (1,3), (2,2), (0,4) (-5,6), (3,4) }

To which subset of real numbers does - 3 belong? A) Integers B) Irrational Numbers C) Integers and Rational Numbers D) Whole Numbers, Integers, and Rational Numbers

Joshua sold his bike for 10% less than he paid for it. if he sold the bike for $585, how much did he pay for it

An animal shelter has a ratio of dogs to cats that's 3:2. If there are 30 cats at the shelter, how many dogs are there? A. 15 B. 90 C. 20 D. 45

Lillianne made 6 out of every 10 baskets she attempted during basketball practice. If she attempted to make 25 baskets, how many did she make

What is a rational number equivalent to 3.12 with a line over 12

Which ordered pairs make both inequalities true? Select two options. y < 5x + 2 y > One-halfx + 1 On a coordinate plane, 2 straight lines are shown. The first solid line has a positive slope and goes through (negative 2, 0) and (0, 1).

The expression 5n + 2 can be used to find the total cost in dollars of bowling where n is the number of games bowled and 2 represents the cost of shoe rental. How much will it cost Vincent to bowl 3 games?

If 10 men can survive for 24 days on 15 cans of rations, how many cans will be needed for 8 men to survive for 36 days?