Answer:
4435.2 miles gor 21 days
Step-by-step explanation:
there is 24 hours in 1 day
24 x 21 = 504

Answer:
C
Step-by-step explanation:
I'm pretty sure, good luck
The answer is 256.25
EXPLANATION
Let
represent the number.
Then, 
We cross multiply yo obtain,

We now divide both sides by 16.

This will give us,

Therefore the number is 256.26
The total number of leaves that was collected by Lisa is the product of the number of days in a week and the number of leaves she collected per tree. This is shown below,
(7 trees / week) x (7 leaves / 1 tree) = 49 leaves / week
Thus, Lisa collected 49 leaves in a week.