On the bike trip, we rode 10 kilometers on Day 1, 18 kilometers on Day 2, 20 kilometers on Day 3. 15 kilometers on Day 4, and 18 kilometers on Day 5. What was the median distance we rode?​

the sum of all the angles in a triangle are equal to 180

so you can add   the 3 given angles together to equal 180:

5y + 2y + 2y = 180

or since all three angles have the same letter, combine the 3 angles to equal 180:

9y = 180

alexa is earning quite a bit more money than she was previously. this would be a good time for her to re-evaluate her budget. part of the extra money she is making could be put in her savings account.