I need help with math

Subtract 8 1/6 - 4 5/6 . simplify the answer and write as a mixed number.

The box plot shows the number of raisins found in sample boxes from brand c and from brand d. each box weighs the same. what could you infer by comparing the range of the data for each brand? a) a box of raisins from either brand has about 28 raisins. b) the number of raisins in boxes from brand c varies more than boxes from brand d. c) the number of raisins in boxes from brand d varies more than boxes from brand c. d) the number of raisins in boxes from either brand varies about the same.

Graph y ≥ -x^2 - 1. click on the graph until the correct graph appears.