Answer:
That slope is undefined
Step-by-step explanation:
x doesn't have an existing value, therefore it is undefined.
First draw the first 2 pictures and then draw a subtracting line and draw the last 1 picture and solve the problem. The answer is 8.
Answer: The fourth one
Step-by-step explanation:
Answer:
0.75 = 75% probability that he will have to wait at a red light for more than 15 seconds
Step-by-step explanation:
At each second, the stoplight is equally likely to change, which means that we use the uniform probability distribution to solve this question.
Uniform probability distribution:
Has two bounds, a and b. The probability of finding a value higher than x is given by:

Red for 60 seconds
So when Jamal arrives it can change in any number of seconds between 0 and 60, that is, 
Probability that he will have to wait at a red light for more than 15 seconds?

0.75 = 75% probability that he will have to wait at a red light for more than 15 seconds
240,000 rounded to the nearest hundred thousand = 200,000