HELP ASAP! Use the information to answer the following question.
Carolyn was asked to solve the following system of equations. Her work is shown.

What error did Carolyn make?

A. Carolyn did not substitute x + 2 for y.

B. Carolyn did not substitute 3 for x to find the value of y for the solution.

C. Carolyn did not subtract 4 from both sides of the equation.

D. Carolyn did not distribute the -2 to both terms.

Which statement accurately explains whether a reflection over the y-axis and a 270° counterclockwise rotation would map figure acb onto itself? a coordinate plane with figure acb with point a at 1, 1, c at 3, 4 and b at 5, 1 yes, a″c″b″ is located at a″(1, 1), c″(4, 3), and b″(1, 5) yes, a″c″b′ is located at a″(1, 1), c″(3, 4), and b″(5, 1) no, a″c″b″ is located at a″(1, 1), c″(4, 3), and b″(1, 5) no, a″c″b″ is located at a″(1, 1), c″(3, 4), and b″(5, 1)

Quadrilateral abcd is translated up and to the right, and then rotated about point q. which congruency statement is correct?

What are the solutions of the equation x4 + 6x2 + 5 = 0? use u substitution to solve.