The times that a cashier spends processing individual customers' orders are independent random variables with mean 1.5 minutes and standard deviation 1 minutes. What is the approximate probability that it will take more than 4 hours to process the orders of 100 people?

5x+40

5(x + 8)

7x - 49

7(x - 7)

18x + 9

9(2x + 1)

15x - 10

5(3x - 2)

step-by-step explanation:

for number one all you have to do is factor 5 out of 5x + 40

for number 2 factor 7 out of 7x - 49

for number three factor 9 out of 18x + 9

for number four factor 5 out of 15x - 10

the aswere is the one with all 8's and the second one is with the 10,8 and 6

step-by-step explanation:

the ratio of balloons to tables is 5: 2 and the constant variation is 5.

the equation is y=5x