The difference of a number m and 30 is 10

Polygon abcde is reflected to produce polygon a′b′c′d′e′. what is the equation for the line of reflection?

Idon't get undoing if its pass adding and subtracting so can someone ? x-2 over 5 = 18

Will mark 50 show all what is the solution to the system of equations? use the substitution method and show your work. -5x+y= -3 -15 x+3y=7 explain what your answer in part (a) tells you about the association of the lines in this system.