100 - 80 = 20
80 = 72
20 = ?
72 / 80 = 0.9
20 x 0.9 = 180
180 + 72 = 252
Nina will need 3 columns,3 rows and she will use 9 squares in all.
Hope that helped
665x12=79.80 increase add it to the 665
They would be riding in the train for 8 hours and in the car for 5 hours.
They spent 560 miles on the train
They spent 200 miles in the car
Option C: -3 is the average rate of change between
and 
Explanation:
The formula to determine the average rate of change is given by
Average rate of change = 
We need to find the average rate of change between
and 
Thus, from the table, we have,
, 
, 
Thus, substituting these values in the formula, we get,
Average rate of change = 


Thus, the average rate of change between
and
is -3.
Hence, Option C is the correct answer.