Answer:
The rate of Krystal is higher
Step-by-step explanation:
Assume that they earned P points in the game
then the rate of Quan = 
and the rate of Krystal = 
∵
(if two fractions have same numerator then the greatest fraction which has the smallest denominator)
∴ The rate of Krystal is higher than the rate of Quan
* To be sure let P = 90 as an example
The rate of Quan = 90/45 = 2 points per minute
The rate of Krystal = 90/30 = 3 points per minute
So the rate of Krystal is higher
Not sure if I'm right but i think the answer is C.
If a figure has four sides, its not always a square. It could be a trapezoid, or another four sided shape. The other converses for A and B are true.
Answer:

Step-by-step explanation:
Since the exponent is in years, we just have to convert it to days:
