The Owner of a Hobby Store Bought a Case of 9-Volt

question 6

Multiple Choice

The owner of a hobby store bought a case of 9-volt batteries for $24.00. He marked the price up such that his profit was $1.76 per battery. After selling 12 batteries, the store owner had recovered his cost. How many 9-volt batteries are in a case?

• A) 100 batteries
• B) 110 batteries
• C) 105 batteries
• D) 95 batteries

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Definitions:

Royal Families

Families that belong to a royal lineage, often ruling over a monarchy and carrying titles of nobility.

Sex-Linked Recessive Trait

A genetic trait located on the sex chromosomes that is expressed in individuals with two copies of the allele, often manifesting more frequently in males.

Hemophiliac Male

A male individual with hemophilia, a genetic disorder that impairs the blood's ability to clot, leading to prolonged bleeding from minor injuries.

Nondisjunction

An error in cell division that results in daughter cells with abnormal numbers of chromosomes.