Michael is three times as old as Brandon. 18 years ago Michael was 9 times as old than Brandon. How old is Michael now?

Micheal is 72 years old

Step-by-step explanation:

If Brandon is b, Michael is 3b; thus

3b-18=9(b-18)

3b-18=9b-162

6b=144

b=24

3b=72

b= 72/3 = 34

If Brandon is 24,

Michael is 3b= 3×24= 72.

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.