What is the axis of symmetry for y = x^(2) - x + 8

The level of co2 emissions, f(x), in metric tons, from the town of fairfax x years after they started recording is shown in the table below. x 2 4 6 8 10 f(x) 26,460 29,172.15 32,162.29 35,458.93 39,093.47 select the true statement.

Inez has a phone card. the graph shows the number of minutes that remain on her phone card a certain number of days.

If the sales price of a dvd is $20 and the markup is 34%, what is the cost of the dvd?