Need help on this last question

In order to be invited to tutoring or extension activities a students performance 20 point higher or lower than average for the

How do you write 600 as a product of its prime factors (index! )

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.