The line ab has midpoint (2,5) a has coordinates (1,2) find the coordinates of b

If f(x) = x+8 and g(x) = 4x- 3, find (f+g)(x)

Can someone me with the property questions for 12 13 and 14 plz

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?