9. use the formula for npr to solve for r if:
5pr= 60

An empty bucket is placed under a faucet dripping at a constant rate of 4 milliliters per minute. with the given information, which of these statements is a reasonable conclusion? a there will be 24 milliliters of water in the bucket after 16 hour. b there will be 60 milliliters of water in the bucket after 14 hour. c there will be 160 milliliters of water in the bucket after 20 minutes. d there will be 100 milliliters of water in the bucket after 40 minutes.

Ijust need to see how to do this. so you don’t have to answer all of them just a step by step explanation of one.

The cost of using a service is $0.25 per min. what equation correctly represents the total cost c, in dollars, for d days of use?