What is the area of this polygon?

a. 28.5 units^2
b. 34.5 units^2
c. 37.5 units^2
d. 40.5 units^2

The answer is C, THANK YOU FOR ASKING FOR HELP WHEN YOU NEED IT YALL

1. 0.3 •4 is the same as 4 groups of 0.32. 7•0.8 is the same as 7 groups of 0.83. it increases by 0.5 every time, so 0.5x4 it increases by 0.9 every time, so 0.9x5. 0.9•12=10.86. 0.47•5=2.35i can finish the next ones in a separate post