How many independent variables should there be in an experiment?

Why do governments supply public goods and services instead of selling them to those people who use them

Based on what you read in the fact sheet, identify the type of customer the company is hoping to reach. super-phonic systems wants to sell phones to customers who: expect the latest smartphone technology. need affordable phone service in remote areas. care more about attractive designs than reliability. will pay top prices for features such as web-surfing.

1of the following choices, which one best describes one way that christianity came to east africa? a. christians traveled in caravans through the sahara desert and introduced the people of mali to a new religion. b. christian traders from the mediterranean interacted with the people of axum. c. christian military from west africa traveled across the continent to bring their religion to the people of east africa. d. christian rulers from asia traveled to east africa to bring their religion to the people. 2 which trade item from outside the region did west africans need most? a. gold b. camels c. salt d. iron