Answer:

Step-by-step explanation:

Formula used =

No because it is the same but in a different way
b is decreased by 25% which means there will be (-ve) sign.
<h3>So,</h3>

- <em>Option 5 is correct!!~</em>
It would be zero bc, 9x-7=-7 you do KCF Change the sign to addition so -7+7=0 now you divide 0 divided by 9=0. Hope this helps