Which expression is equivalent to (3x + 6)+?

A. 3x + 10

B. 7x + 6

C. 12x + 6

D. 13x

If f(x)=2x-6 and g(x)=3x+9, find (f-g)(x)

Apositive number a or the same number a increased by 50% and then decreased by 50% of the result?

Need ! the total ticket sales for a high school basketball game were $2,260. the ticket price for students were $2.25 less than the adult ticket price. the number of adult tickets sold was 230, and the number of student tickets sold was 180. what was the price of an adult ticket?