Apizza delivery shop averages 20 minutes per delivery with a standard deviation of 4 minutes. what is the probability that a pizza takes less than 15 minutes to deliver?

Acable car begins its trip by moving up a hill. as it moves up, it gains elevation at a constant rate of 50 feet/minute until it reaches the peak at 2,000 feet. then, as the car moves down to the hill’s base, its elevation drops at the same rate.

What is the value of x in the equation 6(x + 1) – 5x = 8 + 2(x – 1)?

Answer this question only if you know the 30 points and