Answer:
114.31 nautical miles per day
Step-by-step explanation:
Use formula

where S is the distance, t is time and v is rate.
If S=11431 nautical miles and t=100 days, then

Let's make "x" the variable for Maria's age.
And since Maria's father is 20 years older than Maria:
Age of Maria's Father = x + 20.
Answer:

Step-by-step explanation:

"return on investment" is the best measure of the efficiency of an investment, but it should be noted that there are other indicators of how well an investment is doing.