This is a typical algebra problem pretending to be geometry. The two indicated angles are supplementary, adding to 180 degrees, precisely when the lines are parallel.
It's not really indicated, but the 8 and the 2 are in units of degrees.
2 1/2 pounds of cream cheese for a cheesecake to find the amount needed to make 2 cheesecakes multiply 2 1/2 times 2 2 1/2 times 2 = 5 you need 5 pounds of cream cheese to make 2 cheesecakes
