Jane Has 17 Phone Cards Worth Either $20 or $15

question 1

Multiple Choice

Jane has 17 phone cards worth either $20 or $15. How many of each does he have if the phone cards total $315?

• A) twelve $20 cards and five $15 cards
• B) five $20 cards and twelve $15 cards
• C) eleven $20 cards and six $15 cards
• D) fifteen $20 cards and one $15 cards

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Definitions:

Neolithic Period

A prehistoric time characterized by the development of agriculture, the creation of settled communities, and the use of polished stone tools.

Plant Domestication

The process by which wild plants have been evolved into crop plants through artificial selection and genetic modification by humans, often to enhance traits like yield, taste, and resilience.

Coding System

A method used for categorizing, labeling, or encoding information for easy identification, organization, and retrieval.

Inca

A South American indigenous empire with an advanced society, thriving in what is now Peru from the 13th to the 16th century until the Spanish conquest.