Answer the question based on the data in the two way table

What is the quotient of -3/8and-1/3?

If p(a) = 0.70 and p(b) = 0.20, then a and b are independent events if

Robin spent 25% more time on his research project than he had planned he’s been an extra h ours on the project which of the following expressions could represent the number of hours rob actually spent on the project