Marcel said he can find 52×10 by adding a 0 to the end of 52 to get 520. marcel finds 74.26 × 10 using the same method and gets 74.260

The answer is incorrect.

Step-by-step explanation:

What Marcel said is that if you multiply a number times 10 it is only necessary to add a zero at the end. However, with the number 74.26, it is necessary to move the dot instead of adding a zero due to this, the correct answer is 742.6 and not 74.260, which is the same as the original value (74.2.)

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.