choose 3 out of the 10 fermi problems below and answer in complete sentences. justify your answer with math, facts, and/or reasoning.

a. which is more valuable: a pile of pennies equaling your weight or a stack of quarters
equaling your height?
b. what is your estimate for the total amount of time students in your school spent during
this past semester studying for final exams?
c. if the land area of earth was divided equally for each person on the planet, about how
much would you get?
d. how many songs are played on your favorite radio station in a given year?
e. what is your estimate for the number of airline flights in a year?
f. what is your estimate for the total number of hairs on your head?
g. what is your estimate for the number of square inches of pizza consumed by all
students in your school during the past year?
h. how many gallons of gasoline do cars use each year in the united states?
i. how many hot dogs are eaten at major league baseball games during a season?
j. how many minutes will u. s. high school students spend texting on their cell phones
during the next year?