Steam Engine,eletricity and assembly line.
Answer:
The grandfather clause.
Explanation:
The grandfather clause stated that if your grandfather was able to vote then you would be able to vote.
That is correct. A negative number multiplied by a negative number will be a positive number.
Changes in factors like average income and preferences can cause an entire demand curve to shift right or left. This causes a higher or lower quantity to be demanded at a given price. Demand curves relate the prices and quantities demanded assuming no other factors change. It is important for consumers to know this information, because it is crucial for them to know what they can afford and can't afford.
I'm only in fifth grade not high school sorry. But do you best!!!