1. Evaluate the expression a + b for a = 8 and b = 7 2. Evaluate the expression xy for x = 4 and y = 9 3. Evaluate the expression 3x + y for x = 11 and y = 8.

Arestaurant chef made 1 1/2 jars of pasta sauce. each serving of pasta requires 1/2 of a jar of sauce. how many servings of pasta will the chef be bale to prepare using the sauce?

With number 11 ( show how you got the answer)

Aadc is formed by reflecting aabc across line segment ac, as shown in the figure. if the length of ac is 4 units, the area of aadc is square units.