Given an angle a, what figure can you construct using the steps below?
step 1: draw a ray with endpoint s.
step 2: with the compass point on vertex a, draw an arc that intersects the side of step 3: with the same compass setting, put the compass point on point s. draw an arc and label its point of intersection with the ray as r.
step 4: open the compass to the length bc. keeping the same compass setting, put the compass point on r. draw an arc to locate point t.
step 5: draw st (arrow pointing to the right, above them).
a. a perpendicular bisector
b. a congruent segment
c. an angle bisector
d. a congruent angle

Carla was trying to decide what to do saturday evening. she has $100 available to spend for the evening. she has narrowed her choices down to these events: braves game, a concert of an artist she likes, or the georgia aquarium. admission to the braves game is $25, hot dogs cost $10, sodas cost $5. the concert costs $25 for admission, $20 for a souvernir t-shirt, and $10 for a soda. the georgia aquarium has the show of a lifetime with an all you can eat and drink that costs $100. carla does not want to take any driving chances, so in addition to the cost of the aquarium, she will also need to pay for her uber/lyft, which is $15 each way. which option should carla choose if she wants to spend the least? based on that choice, what then is carla's oppotunity cost? fully explain your answer in at least one paragraph.