Hershberger's Farms plans to mix two types of food to make a mix of low cost feed for the animals in his farm. A bag of food costs $10 and contains 40 units of protein, 20 units of minerals and 10 units of vitamins. A bag of food B costs $12 and contains 30 units of proteins, 20 units of minerals and 30 units of vitamins. Daily minimum requirements consist of 150 units of proteins, 90 units of minerals and 60 units of vitamins. a. Based on the lowest possible cost, how many bags of food A and food B should be consumed by the animals each day?
b. What is the overall cost? $46.50
c. Was there any unused resources?

advanced placement tests

the assumption the narrator makes in this excerpt is that the messages he heards were going to hurt the narrator's mom; the narrator just springs in to action. the narrator doesn't specify in this excerpt why he believes that the messages present a problem that requires protection.

the investment was $14,174.196

explanation:

a lump sum means that the father of the example made one deposit and leave it be.

we need to know the value of a capital that generated at 4.05% per year during 28 years the sum of $48,613.24

now clearing the formula to solve for capital we got:

and we reach the answer investment = $14,174.20