Please give answer for question 20 with explanation! BIG POINTS!

E

Step-by-step explanation:

Given

12x(2y + 3) + 4x(5 - 2y) ← distribute both parenthesis

= 24xy + 36x + 20x - 8xy ( collect like terms )

= (24xy - 8xy) + (36x + 20x)

= 16xy + 56x

Thus none of the above → E

i think it is 70

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.