Which estimate is most reasonable?

francesca purchases a box of cereal for $2.98, hamburger for $4.12, tomatoes for $3.07, and milk for $1.96. she has $17 with her. about how much change should she expect to receive?

$7

$6

$4

$5

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.