Alice is saving money at a constant rate. Suppose she initially has $70 saved, and after 2 months, she has $170 saved. Which of these expresses the rate at which Alice is saving?

Select the correct answer below:

50 dollars per month

70 months per dollar

−50 dollars per month

50 months per dollar

100 dollars per month

$ 50, 0000

$ 70,000000

$-50, 0000

$50, 000000

$100, 0000

correct

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.