Here we want to have x on one side of equation so,
we put number 5 on right side of equation:
abx=5
then we divide both sides by ab to obtain x on left side:
Result:
x=<u />
Each day it decrease $2. So just multiply $2 x 4 days. It changed a total of $8.
Sorry I do not know I wish I could help you
Answer:
709.5
Step-by-step explanation:
660 + 7.5 x 660 : 100 = 709.5