Write an explicit formula for the a_(n), the nth term of the sequence 27,21,15

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.

It says factor each expression 49x-28?

Which expression is a perfect cube? a. x8 b. y24 c. m28 d. x64