Corrected a couple technical issues, also addressed minor typos

Author: jwoolbright23

content/functions/exercises/_index.md

@@ -116,12 +116,14 @@ You will find the starter code in `data-analysis-projects/functions/exercises/fu
    ```
 
    {{% expand "Check your solution" %}}
-   
+
    ```python {linenos=table}
    def make_rectangle(width, height):
       rectangle = ""
       for i in range(height):
-         rectangle += (make_line(width) + "\n")
+         rectangle += make_line(width)
+         if i < height - 1:
+            rectangle += "\n"
       return rectangle
 
    print(make_rectangle(5, 3))
@@ -170,7 +172,7 @@ You will find the starter code in `data-analysis-projects/functions/exercises/fu
    specified number of hashes, followed again by `num_spaces` more spaces.
 
    ```python
-   print(make_space_line(3, 5));
+   print(make_space_line(3, 5))
    ```
 
    **Console Output**

content/functions/reading/function-output/_index.md

@@ -91,7 +91,7 @@ def count_to_n(n):
       if count > n:
          return
       print(count)
-      count += count
+      count += 1
 ```
 
 {{% /notice %}}

content/functions/studio/_index.md

@@ -5,7 +5,7 @@ draft = false
 weight = 3
 +++
 
-The `reverse` list method flips the order of the elements within an list.
+The `reverse` list method flips the order of the elements within a list.
 However, `reverse` does not affect the digits or characters *within* those
 elements.