What is the flaw in gina's proof? (see attachment for the problem)

a) the ordered pairs of d and e were found using the midpoint formula
b) the slope of segments de and ac is not 0.
c) segments de and ac are parallel by construction
d) gina cannot construct the midpoint of a segment

Arrange the steps to solve this system of linear equations in the correct sequence. x + y = -2 2x – 3y = -9 tiles subtract 3x + 3y = -6 (obtained in step 1) from 2x – 3y = -9 (given) to solve for x. substitute the value of x in the first equation (x + y = -2) to get y = 1. the solution for the system of equations is (-3, 1). x = -15 the solution for the system of equations is (-15, 13). add 3x + 3y = -6 (obtained in step 1) to 2x – 3y = -9 (given), and solve for x. x = -3 substitute the value of x in the first equation (x + y = -2) to get y = 13. multiply the first equation by 3: 3(x + y) = 3(-2) 3x + 3y = -6.

Write the equation of the circle centered at (10,-2) with radius 2.

How many square inches are in 60 square feet?