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The sum of the lengths of the bases (b1+b2) for the given trapezoid is 10 meters.

Step-by-step explanation:

The given information are,

It is given that the height and area of the trapezoid is same as the height and area of the parallelogram.

To find the sum of the lengths of the bases of trapezoid :

Substitute height, h of the trapezoid as 7 meters and Area of trapezoid as 35 square meters.

Area of the trapezoid = 1/2 × h × (b1+b2)

35 = 1/2 × 7 × (b1+b2)

70/7 = (b1+b2)

(b1+b2) = 10

Therefore, the sum of lengths of the bases of trapezoid is 10 meters.

8(-10x+3.5y-7)

8×-10x + 8×3.5y + 8×-7

-80x + 28y - 56

therefore

-80x+28y-56 is the correct answer

in the attachment.   i didn't see your choices.   the word which means there is choices.

step-by-step explanation:

(x,y)

x tells you how much left or right you go from the origin

y tells you how much down or up you go from the origin

so for example (-3,2), you go left 3 and up twice. i denoted which of the ordered pairs is which in my graph.