The number of pies available for sale at the Pie in the Sky Bakery varies over the course of the day, and is given by P(t) = 30 - 212 + 161, where t is the number of hours
since the store opens in the morning. What is the average rate at which this
number changes during the first t hours that the store is open?
a) 30-212 +161
t
b) 30-21 +16
Oc) -4t+16
d) None of these

the thermometer is precise but not accurate

step-by-step explanation:

answer: the price of one pound cabbage = $ 0.8

the point (10,8) represents that the cost of 10 pounds cabbage is $ 8

step-by-step explanation:

since, here is a proportional relation between the number of pounds of cabbage (x) and the price in dollars (y).

therefore, we can write,

⇒ y = k x

where k is the constant of proportionality.

now, point (5,4) is in the line.

thus, it will satisfies the above equation of line.

⇒ 4 = 5 k

⇒ k = 0.8

thus, the equation of the line is,

y = 0.8 x

a) for x = 1,

y = 0.8

therefore, the cost of one pound of cabbage is 0.8 dollars.

b) in the below graph (10,8) represents that the cost of 10 pounds of cabbage is 8 dollars.

step-by-step explanation:

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step-by-step explanation: