PLZ HLP Using the order of operations, what is the last calculation that should be done to evaluate 4(8 − 6)52 − 6 ÷ (−3)?

4(8 − 6)52 − 6 ÷ (−3)
4(2)52 − 6 ÷ (−3)
4(2)(25) − 6 ÷ (−3)
200 − 6 ÷ (−3)
200 − (−2)

Apure acid measuring x liters is added to 300 liters of a 20% acidic solution. the concentration of acid, f(x)=x+60/x+300, in the new substance is equal to the liters of pure acid divided by the liters of the new substance, or f(x)=. which statement describes the meaning of the horizontal asymptote?