Hillary makes two transactions while at the mall: • She returns an item to get $15 back at one store.
• She buys an item for $15 at another store.

Which is a correct description of the two quantities that represent these transactions?

A
The quantities have the same magnitude, but different signs.

B
The quantities have the same sign, but different magnitudes.

C
The quantities have different magnitudes and different signs.

D
The quantities have both the same magnitude and the same sign.

i think the answer is true

step-by-step explanation:

answer: (-8,4) are the coordinates of a

step-by-step explanation:

let the side of square abcd is x .

thus the area of square abcd is .

now, by the diagram area of triangle ead= 1/2 × ea × ad = 1/2 × ea × x

( because ad is the side of square)

and, according to the question,

the areas of square abcd and right ead are equal.

⇒

⇒ea=2x

thus, ea: ab=2: 1

therefore, point a divides line segment eb into the ratio 2: 1.

⇒ by sectional formula coordinates of a are,

=

=

=(-8, 4)

thus the coordinates of a are (-8,4)

answer: the answer for that is 22/3