30 in.
20 in.
36 in.
Find the area of the trapezoid shown above.
[?] square inches

660 in^2

Step-by-step explanation:

The formula to calculate area of trapezoid : (a+b)/2*h (a: base, b: base, h: height)

(30+36)/2*20 = 660 in^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.

5/12, or 5: 12

step-by-step explanation: