This is unclear...what is the exponent for the x and is the 1/2 on the outside also an exponent?
Y=-180x+b
20=-180(4)+b
20=-720+b
20-(-720)=b
740=b
The answer to this equation is
y=-180x+740
I think that its 12.5 percent.
_Award brainliest if helped!
B. -7≤X≤7
