Amount of flour Helena accidentally poured
cups of flour.
Amount of flour the cake requires
cups of flour.
Amount of flour that Helena should take out 





cups of flour.
That’s not 25 points but ok
Subtract 3 from both sides
(z = -9 - 3)
Simplify -9 - 3 to -12
z = -12
3 + -12 = -9 so this is true.
225
Step-by-step explanation:
Look it up on google.