Answer:

Step-by-step explanation:
The model shows that there are 40 tiles which were divided into 4 per group. This results into 10 groups. That is:

Therefore, the expression modeled by the arrangement of the tiles is 
Answer:
The answer is 6/49, I hope this helps.
Answer:
0.04306220095
Step-by-step explanation:
0.04306220095
Answer: 50 - a = 49
Step-by-step explanation:
50 x a =50
50 x 1 = 50
a=1
50 - a = 50 - 1
50 - 1 = 49
15 x 7 days = 105 then multiply 5 weeks. 5 x 105 = 525 miles