To find what profit they made, subtract what they earned from what they spent money on. 275-55=220. They made a total of $220 after paying for supplies. I hope this helps! :)
We know that ∠ ≅ ∠ because they are vertical angles, so that's one pair of congruent angles. However, we can't compare ∠ and ∠ as they have different measures, so we'll have to find the measure of either ∠ or ∠. Let's go with the former. Using the fact that the sum of the measures of the interior angles of a triangle is °, we know that ∠°. Now, we know that ∠ ≅ ∠ because their measures are equal. That's another pair of congruent angles. Therefore, the angles are similar by . Hope this helps!