John is a software salesman. let y represent his total pay (in dollars). let x represent the number of copies of math is great he sells. suppose that x and y are related by the equation what is the change in john's total pay for each copy of math is great he sells? what is johns total pay if he doesn't sell any copies of math is great?

see below  please give brainliest

Step-by-step explanation:

X times cost = Y

If he doesn't sell any books than he doesn't make any money.  Each time he sells a book his pay will go up the cost of the book.

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.

1/2*qr*rs

step-by-step explanation: