A rock climber is at a height of 120 feet. He is lowered down the rock to the ground at a rate of 2 feet per minute. The climber's height, in feet, is a function of time, in minutes. Which of the following graphs represents the domain of this function?

Please help

D

Step-by-step explanation:

The higher he is the longer it takes to get down to the bottom

delaney would like to make a 5lb nut mixture that is 60% peanuts and 40% almonds.

she has several pounds of peanuts and several pounds of a mixture that is 20% peanuts and 80% almonds.

let 'p' represent the number of pounds of peanuts needed to make the new mixture, and  

let 'm' represent the number of pounds of the 80% almond-20% peanut mixture.

:

p + m = 5

therefore

m = (5-p)

write an equation based on the percent of peanuts

1p + .2m = .6(5)

replace m with (5-p)

p + .2(5-p) = .6(5)

p + 1 - .2p = 3

p - .2p = 3 - 1

.8p = 2

p = 2/.8

p = 2.5 lbs of peanuts required

then

5 - 2.5 = 2.5 lbs of the peanut/almond mixture required

:

a) what is the system that models this situation?

p + m = 5

1p + .2m = .6(5)

he has 140 chickens because he has 10 times more chickens than ducks and he has 14 ducks so 14*10=140