Answer: D
Step-by-step explanation:
Since it is subtracting x from 20. D tells the change from 20 dollars after buying the notebook or x.
A is 20 + x
B is 20/x
C is 20x or 20 * x
D is 20 - x
Use photomath it’s very helpful
Answer:
131
Step-by-step explanation:

So we have

which, as the above manipulation showed, is equivalent to

Answer:
I have a app for this actually
Step-by-step explanation: