6/8 - 2/16a

How would I work this out?

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.

Divide. reduce the answer to lowest terms.5 2/3 ÷ 3 1/9

Use sigma notation to represent the following series for 9 terms.