5x^2 + 6x +13.88 is what is is simplified hope it helped a bit
Answer:
(a) 
Step-by-step explanation:
Given


Required
Determine the time in each lap
The unit time in each lap is calculated by dividing the total time by the number of laps; i.e.;

Substitute values for Time and Lap

500000 is the answer you are looking for my friend :D
2. 25°
3. 155°
4. 25°
8. 90°
7. 25°
9. 65°