Step-by-step explanation:
x is -9
hope it helps!:)
Answer:
its c
Step-by-step explanation:
Answer:
The average amount he paid over 3 days is $15.47.
Step-by-step explanation:
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
