Grade for Class 8 Assignment

Good job, Jeff.

### Study the changes provided

#### Exercise 1

- No crashes, works as expected. 4 points

#### Exercise 2

- No crashes, works as expected. 4 points

#### Exercise 3

- No crashes, works as expected. 4 points

#### Exercise 4

- No crashes, works as expected. 4 points

#### Exercise 5

- No crashes, but doesn't work as expected. 3 points
- Doesn't handle the case when `hour` is `0`

#### Exercise 6

- No crashes, but doesn't work as expected. 3 points
- Same as above, so I won't penalize you twice for the same thing. +1 point

#### Exercise 7

- Crashes, doesn't work as expected without major changes. 1 point

#### Total

`4 + 4 + 4 + 4 + 3 + 3 + 1 + 1 = 24`