Abathtub is draining at a constant rate. after two minutes, it holds 30 gallons of water. three minutes later, it holds 12 gallons of water. right in equation that represents the number y of gallons of water in the tub after x minutes.

The jewelry store is having a sale. necklaces that were regularly priced at $23.50 are on sale for $18.80. what is the percentage of decrease in the price of necklaces?

In 2000 there were 100 rabbits in central park the population increased by 16% each year ? write a function to illustrate the situation. how many rabbits were in central park in 2005 . predict how many rabbits there will be at the end of this year we are in 2018?

Atown has a population of 7000 and grows at 3% every year. to the nearest year, how long will it be until the population will reach 12400?