) You cannot stand your Probability and Statistics class. The amount of time you can listen to the lecture before storming out is assumed to be an exponential random variable with mean 30 minutes. Given that you have already been listening to the lecture for 35 minutes, what is the probability that you will continue listening to the lecture for 15 more minutes

$25

step-by-step explanation:

25 - 4.50 = 20.5

20.5 / 2 = 10.25

10.25 + 10 = 20.25

20.25 - 12.50 = 7.75

therefore the answer is $25 as shown as the first number.

b. would be the answer : )

step-by-step explanation:

step 1: add -16x to both sides.

16x−4y+−16x=64+−16x  

−4y=−16x+64

step 2: divide both sides by -4.

−4y /-4 = -16x + 64/-4

answer:   y=4x−16

hope i'm right

ratio is 2 : 9

the answer is three

13.5 : 3