At the beginning of the year, Harper had $30 in savings and saved an additional 10$ each week thereafter. Stella started the year with $45 and saved $7 every week. Let H represent the amount of money Harper has saved t weeks after the beginning of the year and let S represent the amount of money Stella has saved t weeks after the beginning of the year. Write an equation for each situation, in terms of t, and determine the number of weeks after the beginning of the year until Harper and Stella have the same amount of money saved.
S=__
H=___