A wolf bone is found to be 75,000 years old. How many parts per trillion of Carbon-14 were there? Show your work.

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 ?

Linda loans her friend $250 with a 5% monthly intrest rate. how much was the whole loan?

Suppose that in 2008 , 840,800 citizens died of a certain disease assuming the population of teh country is 399 miliion, what is the mortality rate in units of deaths per 100,000 people?