How do I know if a pair is a function or not?

It takes Susan 3 hours to fix 2 broken cars and it takes Joseph 4 hours to fix 3 broken cars. If they work together how long will it take them to fix 17 broken cars?

What is the answer to 2017-1859 i really need to know?

How many seeds in a watermelon if you cut it in 7 peaces

Approximately 4/5 of U. S homeowners have a cell phone. what percent of homeowners do not have a cell phone

What is the slope of 9x-3y=18?

Create an equation in one variable with atleast four operations

if the farm has 30 chickens and cows and there are 82 chickens and cow legs all together how many cows would the farm have?

The graph of y=3x is shown. What is the value of x when y=27? A. 2 B. 3 C. 9 D. 24

What is the probability of spinning yellow

Verify each trigonometric equation by substituting identities to match the right hand side of the equation to the left hand side of the equation 4. sine of x divided by one minus cosine of x + sine of x divided by one minus cosine of x = 2 csc x