What is 16/1/9+-4/2/3? helppp

The roots of the function f(x) = x2 – 2x – 3 are shown. what is the missing number?

What three-dimensional solid have 6 rectangular faces, 2 equal bases that are not rectangles and 18 edges

Which equation is equivalent to the given expression? -(1/2y+1/4) a. -1/4(1+2y) b. 1/4(2y-1) c. -2(1/4y-1/8) d. 2(1/8-1/4y)