There are 240 counters in a bag. Workout the number of red counters in the bag

Can someone me with my hwplz(only the circled ones)

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.

What is the least common factor of 6 and 8