The answer is -6. hope this helps
1. 80 ounces = 5 pounds and 8 pounds = 128 ounces so (8>80)
2. 3 pounds = 48 ounces and 50 ounces = 3.1 pounds so (3<50)
He is incorrect He wrote 50, when it should be 5.
The answer is c or the third option. If we start at one we get (4(1)-9)=-5, then we can do 2 and we get (4(2)-9)=-1. Lets do 3 (4(3)-9)=3. Now 4 (4(4)-9)=7. Now 5 and our last one (4(5)-9)=11. Now notice we get -5+-1+3+7+11.
5.25+(5.25*.5) = 63/8 = 7 7/8