Which phrase describes an unknown or changeable quantity The height of a building times 1/2
2 oclock in the afternoon
3feet 7 inches
4 quarts in a gallon

Explain step-by-step how to simplify -5(2x – 3y + 6z – 10).

Acourt reporter is transcribing an accident report from germany. the report states that the driver was traveling 80 kilometers per hour. how many miles per hour was the driver traveling?

Jayne is studying urban planning and finds that her town is decreasing in population by 3% each year. the population of her town is changing by a constant rate.true or false?