Answer:
-x-3, 7x-3, -15
Step-by-step explanation:
For first 2 just add/subtract their equations. For the last one (r.s)(-1) is the same as r(s(-1)) so s(-1)=4(-1)=-4 and r(-4)=3(-4)-3=-12-3=-15
56m^2
see the steps from the pic
sorry to my answer i need a point and i ask a question Sorry :(
Answer: 7 Per Plain wrapping paper, and 8 Per Shiny wrapping paper
Hope this helps :)
