Solve the system of equations by substitution. What is the solution for x? 2x + y = 1
4x + 2y = -1 ​

Based on the figures as marked, /\rqs = —

Manuela claims that and are congruent. which statement best describes her claim? she is incorrect because the segments do not have the same orientation. she is incorrect because the segments do not have the same length. she is correct because the segments have the same length. she is correct because the segments have the same orientation.

What is the gcf of 20c^3-5c^4+30c^6