Margo places 6 pennies and 4 nickels in a jar. For the experiment, she
selects a penny, replaces it, and
selects another penny. If Margo
repeats the experiment 100 times,
how many times can she expect to
select two pennies ?

At the beginning of 1974/75,2 years a man invested #2000 in a bank at 12.5% compound interest, if it degree #650 at the end of each two years to pay his son's school fees, after payment of interest to pay his son's school fees, how much did he have left at the beginning of the 1978/79 school year?

Taylor wants to paint his rectangular deck that is 41 feet long and 24 feet wide. a gallon of paint covers about 350 square feet. how many gallons of paint will taylor need to cover the entire deck? round your answers to two decimal places when necessary.

Asequence is a function whose is the set of natural numbers