You need to know these two formulas:

For example,

Ok this is really easy if you thinl about it
so every ounce is how many servings?
well all you do is divide 72 by 12
happy solving :)
Answer:
The third book cost $9.03
Step-by-step explanation:
Answer:
5x + 2 - 2(4x - 2)
Step-by-step explanation:
-2 x 4x= -8x
5x-8x=-3x
-2 x -2= 4
4+2=6
-3x+6
hope this helped ^ ^