9c + 1 = 10 what is the answer the algebra way?

You receive 15% of the profit from a car wash how much money do you receive from a profit of 300

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?

Let f(x) = 5/x and g(x)=2x2+5x. what two numbers are not in the domain of f o g