At the beginning of the year, Christopher had $50 in savings and saved an additional $5 each week thereafter. Aria started the year with $20 and saved $10 every week.
Let C represent the amount of money Christopher has saved t weeks after the
beginning of the year and let A represent the amount of money Aria 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 Christopher and Aria have the
same amount of money saved.