Janina is the tallest, while Isabel is the shortest.
X-25 < 100
x minus the $25 discount has to be less than 100
The greatest common factor of the three numbers is 4
Step-by-step explanation:
x²+2x-3=0
(x²+3x)-(x-3)=0
x(x+3)-1(x+3)=0
(x-1)(x+3)=0
x=1 or x=-3
