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
4×6=24
24×15=360
360×2=720
15-12=3
3×6=18
18×18=324
324+720=1044inches
Answer:B
B
perimeter is the sum of all sides. it's the distance around the figure.
