A principal of 5500 is invested in an account paying the amount of an annual rate of 5%. Find the amount in the account after 4 years if the account is compounded semi-annually, quarterly, and monthly.

Elena and her husband marc both drive to work. elena's car has a current mileage (total distance driven) of 15,000 and she drives 23,000 miles more each year. marc's car has a current mileage of 46,000 and he drives 9,000 miles more each year. will the mileages for the two cars ever be equal? explain.

45% of the trees in a park are apple trees. there are 27 apple trees in the park. how many trees are in the park in all?

If p(a) = 0.70 and p(b) = 0.20, then a and b are independent events if