What is the explicit formula for the arithmetic sequence 4/5, 29/30, 17/15, 13/10?

Find the sum of the measure of the interior angles of a polygon of 9 sides ; of 32 sides

Which mathematical statements are true? 1) if 3 is an odd number, then 3 times 3 is an even number. 2) if 6 is less than 7, then 4 is greater than 7. 3) six is divisible by 3, and 10 is a multiple of 2. 4) the average of the data is greater than the largest value in the data, or it’s less than the largest value in the data. 5) the slope of a linear graph is its rate of change, and the graph’s y-intercept is the initial value. 6) if an equilateral triangle has equal angles, then all its angles will measure 45°.

Someone me what is the area of this figure? 18m 18m 8m 16m