Half a pound of cashew butter is half of $7.30. Multiply 7.30 by 0.5 (0.5 is 1/2). That is $3.65. Half a pound of macadamia nut butter is half of $7.86. Multiply 7.86 by 0.5. That is $3.93. 4 pounds of peanut butter is 4 times $4.51. That is $18.04. Add them all together to get $25.62 (the answer).