The Sanchez Company purchased a delivery truck on February 1, 2021. The purchase agreement required Sanchez to pay the total amount due of $15,000 on February 1, 2022. Assuming an 8% rate of interest, the calculation of the price of the truck would involve multiplying $15,000 by the:.
A. Present value of $1.
B. Present value of an ordinary annuity of $1.
C. Future value of S1.
D. Future value of an ordinary annuity of $1.

Oz makes lion food out of giraffe and gazelle meat. giraffe meat has 18 grams of protein and 36 grams of fat per pound, while gazelle meat has 36 grams of protein and 18 grams of fat per pound. a batch of lion food must contain at least "46,800" grams of protein and 70,200 grams of fat. giraffe meat costs $1/pound and gazelle meat costs $2/pound. how many pounds of each should go into each batch of lion food in order to minimize costs? hint [see example 2.]