29. Given f(x) = 3x + 5 and g(x) = – 8x – 10, a. Find f(x) + g(x)
b. Find f(x) – g(x)
c. Find f(x)  g(x)
d. Find f(x) ÷ g(x)
e. Determine which of the above are polynomials.

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Step-by-step explanation:

DONT KNOW

10

step-by-step explanation:

7+3=10

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.