[(2x 10) divided by 1/3]+8

14.7 (Rounded)

Work: So since (2 x 10) / 1/3 is in parentheses, I'm going to to that first. And since (2 x 10) is in parentheses in a parentheses, I'm going to do that multiplication first. After doing the multiplication, I get 20, and I'm going to divide it by 1/3 since it's in the parentheses. After dividing, I get 6.666..., But I'm going to round it to 6.7. Then, I'm going to add 6.7 by 8, and I got 14.7

I hope this helps, and Happy Holidays! :)

answer: the answer is 127 degrees

it has to have an angle of 90 degrees