JoeNah, Dekobian and Evan wrote equations to calculate the amount of
money in a savings account after one year with 5% interest paid annually on
an investment of M dollars. Let B represent the balance of money saved.
JoeNah's Equation: B = 1.5M
Dekobian's Equation: B = M+ 0.05M
Evan's Equation: B = M(1+0.05)
The three students decided to see if their equations would give the same
answer by using a $100 balance. Find the total amount of money in the
savings account using each student's equation. Show your work.

An annual marathon covers a route that has a distance of approximately 26 miles. winning times for this marathon are all over 2 hours. the following data are the minutes over 2 hours for the winning male runners over two periods of 20 years each. earlier period 14 12 15 22 13 10 19 13 9 14 20 18 16 20 23 12 18 17 6 13 recent period 7 11 7 14 8 9 11 14 8 7 9 8 7 9 9 9 9 8 10 8 (a) make a stem-and-leaf display for the minutes over 2 hours of the winning times for the earlier period. use two lines per stem. (use the tens digit as the stem and the ones digit as the leaf. enter none in any unused answer blanks. for more details, view how to split a stem.) minutes beyond 2 hours earlier period 0 1 2 (b) make a stem-and-leaf display for the minutes over 2 hours of the winning times for the recent period. use two lines per stem. (use the tens digit as the stem and the ones digit as the leaf. enter none in any unused answer blanks.) minutes beyond 2 hours recent period (c) compare the two distributions. how many times under 15 minutes are in each distribution