Answer:
Hey man! Please upload a picture of your line and I'll hapily find the x intercept. If you can't the way to find an x intercept is to see where the x is zero and find what the y is so (0,y)
6% of the racers did not ocmplete the marathon
Step-by-step explanation:
290 racers
272 completed the race
15 + 3 = 18 did not complete the race
= 0.94 = 94%
= 0.06 = 6%
a = 8
-5(a + 3) = - 55
- 5a - 15 = - 55
55 - 15 = 5a
5a = 40
a = 40 : 5