I need help with #41 and #42 ASAP please help me.. please show step by step I need to get it done soon because It is due

Use the elimination method to solve the system of equations -x+5y=-4 and 4x+3y=16

Angle xyz is formed by segments xy and yz on the coordinate grid below: a coordinate plane is shown. angle xyz has endpoints at 3 comma negative 1 and 6 negative 2 and 3 comma negative 3 and measures 36.87 degrees. angle xyz is rotated 270 degrees counterclockwise about the origin to form angle x′y′z′. which statement shows the measure of angle x′y′z′?

Lola says these two expressions have the same value. expression a expression b which explains whether lola is correct?