If tan(x) = − 12/5 and x is in quadrant IV, find the exact values of the expressions without solving for x. a. sin(x/2)

b. cos(x/2)

c. tan (x/2)

Kayla made observations about the sellin price of a new brand of coffee that sold in the three different sized bags she recorded those observations in the following table 6 is $2.10 8 is $2.80 and 16 is to $5.60 use the relationship to predict the cost of a 20oz bag of coffee.