Can someone me graph these: h(n) = 25*(2/5)^n f(x) = 32(0.5^x) f(x) = 0.5(1.2^x) f(x) = 0.4(¾)^x

Mike wants to make meatloaf. his recipe uses a total of 8 pounds of meat. if he uses a 3 to 1 ratio of beef to pork, how much pork will he use? enter your answer as a mixed number in simplest terms.