Please help me solve part A and B

Part A:

Nutrition Use duality to answer the following application.

of protein and $78,000$ grams of fat. Giraffe meat costs $$1$ per pound and gazelle meat costs $$2$ per pound. How many pounds of each should go into each batch of lion food in order to minimize costs?

$($giraffe meat, gazelle meat$)=$

$1$ b

What are the shadow costs of protein and fat?

protein $ $\mathrm{.}05$ per g

fat $$$ per g

Part B:

You are the marketing director for a company that manufactures bodybulding supplements,and you are planning to run ads in sports illustrated and GQ Magazine. On the basis of readership data, you estimate that each ad in sports illustrated will be read by $600,000$ people in your target grop, while each ad in GQwill be read by $150,000.$ You would like your ads to be read at least $6$ million people in the target group, and you plan to place at least $2$ ads in sports illustrated and at least $4$ ads in GQ

during the next year. Sports Imustrated quates you $$2000$ per ad$,$ while GQ quotes you $$1000$ per ad$.$ How many ads should be placed in each magazine to satisfy your requirements at a minimum cost?

Sports Illustrated

ads

GQ Magazine