Answer:
1. 50 miles
2. 100 miles
3. 300 miles
4. 400 miles
5. 35th day
Step-by-step explanation:
How old are you is x is hmmm gc 25 cf 6
Answer: 3/7 sorry if wrong
Step-by-step explanation:
70 times, because there is one four, giving him the change of 1/6
Method 1.
Use 

Method 2.
Use distributive property: (a + b)(c + d) = ac + ad + bc + bd
