Ralph Wants to Buy Some Milk and a Box of Cereal

question 88

Multiple Choice

Ralph wants to buy some milk and a box of cereal. If Ralph buys 2 quarts of milk at $1 per quart, the box of cereal costs 75 cents. If he buys 3 quarts of milk at $1 per quart, the box of cereal is free. For Ralph, the marginal cost of the third quart of milk is

• A) zero.
• B) 25 cents.
• C) 75 cents.
• D) $1.

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Definitions:

Elements Of Unsaturation

A measure indicating the total number of pi bonds and rings in a molecule, useful in determining molecular structure.

Molecular Formula

A way of expressing information about the atoms that constitute a particular chemical compound, using symbols for the elements and numerical subscripts indicating the number of atoms involved.

Carbon-Carbon Double Bond

A chemical bond between two carbon atoms involving four bonding electrons, the basis of alkenes' structure and reactivity.

Geometry

The branch of mathematics concerning the properties and relations of points, lines, surfaces, solids, and higher dimensional analogs.