Which of the following represents the greatest percent of change? A. A tree grew from 6 feet to 12 feet in 1 year. B. An aquarium that was originally priced at $80 is now $60. C. A person whose salary was $100 per week is now earning $120 per week. D. A baby who weighed 7 pounds at birth now weighs 16 pounds.

Acircle has a circumference of 2 pi cm. which statement about the circumference and area is true? a comparison of the area and circumference is not possible since the area cannot be determined. the numerical values of the circumference and area of the circle are equal. the numerical value of the circumference is greater than the numerical value of the area. the numerical value of the circumference is less than the numerical value of the area.

Tickets to a science exposition cost $5.75 each for studentd and $7.00 for adults.how many students and adults went if the ticket charge was $42.75

If a is a nonzero real number then the reciprocal of a is