Answer=150 seats were on the plane total
54 81
____=____
100 x
cross multiply
54x=8100
x=150 seats
I can help with the piecewise function
I don't think I can correctly format it very well on my computer so I can give you the points if you can fill it in correctly.
f(x)=4 if x≤-2
f(x)= -x if -2<x<2
f(x)= -3 if x≥2
Hopefully this helps. I don't think I can help with problem #1. Sorry
I think it's b I hope these helpes
9x1.19=10.71
This means the dog weighs 10.71 pounds, hope this helps
Answer:23
Step-by-step explanation: