At the beginning of the year, Juan had $60 in savings and saved an additional $15
each week thereafter. Mila started the year with $40 and saved $20 every week. Let J
represent the amount of money Juan has saved t weeks after the beginning of the
year and let M represent the amount of money Mila has saved t weeks after the
beginning of the year. Graph each function and determine the number of weeks after
the beginning of the year until Juan and Mila have the same amount of money saved.