A candy company has 123 kg of chocolate-covered nuts and 75 kg of chocolate-covered raisins to be sold as two different mixes. One mix will contain half nuts and half raisins and will sell for $7 per kg. The other mix will contain 3/4 nuts and 1/4 raisins and will sell for $9.50 per kg. complete parts a and b.

a. How many kilograms of each mix should the company prepare for maximum revenue? find the maximum revenue.

b. how many kilograms of each mix should the company prepare for minimum revenue? find the minimum revenue.