Question: when solving any problem please be as thorough as possible...

When solving any problem please be as thorough as possible. Write down EACH step and explain (in plain English) what you did.
Make sure you EXPLAIN why you think the answer is correct. Just stating the answer is NOT a good submission.

1. Kate rode her bicycle for 30 minutes at a speed of 16 mph, then walked for 90 minutes at a speed of 4 mph. What was her overall average speed in miles per hour?
   
2. At Frank's Fruit Market, 3 bananas cost as much as 2 apples, and 6 apples cost as much as 4 oranges. How many oranges cost as much as 18 bananas

please try to type the answer because most of the time when people answer questions i can not read their hand writting .