5/11 is a fraction, so it is for sure a rational number and a real number.
Since it is a fraction, it is NOT irrational (which means "not rational" or "not a fraction).
It is NOT an integer, whole number, or natural number, becuase it is only a piece of a whole. 5/11 ≈ 0.454545..., and intergers, whole numbers, and natural numbers don't involve decimals.
Answer:
B
Step-by-step explanation:
I got it correct
Answer:
Increasing by $66 per day
Step-by-step explanation:
If sales are dropping at a rate of 2 per day, the sales function is:

If price is increasing by $1 per day, the daily price function is:

Revenue is given by daily sales multiplied by daily price:

The derivate of the revenue function gives us the daily rate of change in revenue:

Currently (t=0) her daily revenue is changing by:

Her revenue is increasing by $66 per day.