A fire alarm rings 20 times. It pauses for 1 second between rings. Each ring is 3 seconds long. How long does the ringing last? a. 60 seconds b. 79 seconds c. 68 seconds d. 80 seconds

Sara bought a pair of pants that were on sale for 30 percent off of the original price. if the original price of the pants was $29, what was the sales price of the pants?

You deposit $5000 each year into an account earning 3% interest compounded annually. how much will you have in the account in 30 years?

Pepe and leo deposits money into their savings account at the end of the month the table shows the account balances. if there pattern of savings continue and neither earns interest nor withdraw any of the money , how will the balance compare after a very long time ?