In july tina earned 3576 in august she earned 1312 more than she did in july. in september mary earned the same amount as she did in july. how much did mary earned all together during those three months

answer: it's a

step-by-step explanation:

2nd one in the first row is correct

i think it might be a but you might want a second opinion

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)