Describe the relationship between the two quantities. amount of money earned; number of hours worked a. inverse b. direct c. joint d. compound

Option: b is the correct answer.

                            b. direct

Direct variation--

Two variables x and y are said to be in direct variation if there exist a constant k such that:

i.e. with the increase or decrease in one variable the other variable also increase or decrease.

Here the two quantities are:

Amount of money earned

Number of hours worked.

Since we know that the number of hour one will work more/less , more/less will be the amount of money earned.

i.e. the amount of money is calculated by the number of hours worked.

Hence, there will be a direct variation between the two quantities.