Find the cosine of ∠I. Write your answer in simplified, rationalized form. Do not round.
cos (I) =

Bruce is getting materials for a chemistry experiment his teacher gives him a container that has 0.25 liter of liquid in it.bruce need to use 0.4 of this liquid for the experiment. how much liquid will bruce use?

How far could you drive on 50 gallons of gas

Write the expression 7x^3-28xy^2 as the product of 3 factors