Easy question i am just unsure. check answer

julio is at a car race. starting from 0.5 mi away, the car drives toward him and then passes him. the car travels at a constant rate of 110 mi per hour.
the distance of the car from julio is given by 2=|0.5 - 110t|. at what times is the car 0.05 miles from julio? calculate your answer in seconds.

14.7s and 18.0s
100s and 110s
147s and 180s
1.5s and 1.8s

i think it is a but i am not

What is the difference between the predicted value and the actual value

The boiling point of water at an elevation of 0 feet is 212 degrees fahrenheit (°f). for every 1,000 feet of increase in elevation, the boiling point of water decreases by about 2°f. which of the following represents this relationship if b is the boiling point of water at an elevation of e thousand feet? a) e = 2b - 212 b) b = 2e - 212 c) e = -2b + 212 d) b = -2e + 212

Luke started a weight-loss program. the first week, he lost x pounds. the second week, he lost pounds less than times the pounds he lost the first week. the third week, he lost 1 pound more than of the pounds he lost the first week. liam started a weight-loss program when luke did. the first week, he lost 1 pound less than times the pounds luke lost the first week. the second week, he lost 4 pounds less than times the pounds luke lost the first week. the third week, he lost pound more than times the pounds luke lost the first week.