Which set of events is an example of dependent events?

a. rolling an odd number, and then rolling an even number.

b. you choose a number from 1 to 50 from a hat, replace it, and then draw a second number.

c. you choose a marble from a bag, don't replace it, and then choose another marble.

d. you roll a 4, and then spin yellow on a spinner.

Correct answer is C: You choose a marble from a bag, don't replace it, and then choose another marble.

the answer is 1/4

step-by-step explanation:

the revenue of the fitness center, y, is the product of two factors: the number of members and the fee paid by each member. there are 320 members now, but number of members goes down by 10 for each $5 increase in fees, so if x is the number of $5 price increases then members is equal to (320 - 10x). since the fee is currently $45, and the fee increases by $5 for every price bump x, the fee is given by (45 + 5x). so, revenue y is given by y = (320 - 10x)(45 + 5x).