3. You open a savings account with a deposit of $25.00 and plan to make additional deposits of $15.00 per week. Write an explicit formula to represent
the amount of money in your account as an arithmetic sequence. When will
you have enough money to buy a $300 video game system?

In the figure below, ∠dec ≅ ∠dce, ∠b ≅ ∠f, and segment df is congruent to segment bd. point c is the point of intersection between segment ag and segment bd, while point e is the point of intersection between segment ag and segment df. the figure shows a polygon comprised of three triangles, abc, dec, and gfe. prove δabc ≅ δgfe.