Answer:
Step-by-step explanation:

To make this easier, to get ride of the fractions, we can multiply both sides by 4

now use the distributive property

now we want to isolate x to one side and isolate all the constants to the other

now simplify

to test, we can plug in back to the original

it works
You are adding 6 to each number. (N-1)+6, I guess
Everyone would get 2 1/4 cupcakes because if you split up each cupcake by 4, (In four different pieces) everyone would get 9/4 slices. Change to a mixed number to get 2 1/4
Answer: $6.75
Step-by-step process:
100%-25%=75%
therefore, they will cost 75% of the original price
75% of $9.00 = .75*9
= $6.75