Me ayudan a contestar todo esto es para ahotita doy corona

Can someone check my answer? you

#1-20 state whether the angles are alternate interior, alternate exterior, vertical, or corresponding angles.

Sundar used linear combination to solve the system of equations shown. he did so by multiplying the first equation by 5 and the second equation by another number to eliminate the y-terms. what number did sundar multiply the second equation by? 2x+9y=41 3x+5y=36