Answer:
i believe the answer is 14.93 dollars.
Step-by-step explanation:
By scientific notation I am assuming you mean standard form, as that is used primarily in scientific calculations. The answer in standard form would be

I hope this helps!
Answer:
31/40
Step-by-step explanation:
It cannot be reduced anymore. It is already in simplest form.
Answer:
-8f
Step-by-step explanation:
For the first one...
1,15
2,30
3,20
and for the second one is the same as the first one.
EXTRA CREDIT:
Week one increases by 15, week two increases by 15 but week three decreases by 15. The total miles ran would be 15 miles
15+15=30 30-15=15 miles