How do you place one set each of parentheses, brackets, and braces on the expression 7×20÷11-9+2÷8 with value being 9

Abird on top of a 200 ft bridge tower sees a man standing on the lower part of the bridge (which is 50 ft above the ground). the angle of depression from the bird is 26 ̊. how far is the man from the base of the bridge tower? with explanation and pictures .

What is always true when two whole numbers are subtracted?

Write the equation in logarithmic form m^x=n