I'm pretty sure that mean and average both mean(pun not intended) the total value of the data divided by the number of values, giving you an average.
Mode is the value that is repeated most often. For example, if your data set is 1, 3, 4, 2, 2 the mode is 2 because it is repeated twice. If there was another 3, 4, or 1 then the mode would be both values, as they both were repeated the most often.
Hope this helped :)

First, find the LCD (least common denominator) of the two fractions.
List the multiples of each denominator and find the one that is common.
Multiples of 8: 8, 16, 24, 32, 40
Multiples of 5: 5, 10, 15, 20, 25, 30, 35, 40
40 is your LCD.
Second, what can you divide by to make the denominators of each fraction '40'? Whatever you do to the bottom you must do to the top.

Third, multiply.

Fourth, since the denominators are the same now, we can combine them.

Fifth, subtract '25 - 16' to get 9.

Since

is already in the simplest form, it is your answer.
Answer as fraction:

Answer as decimal:
It’s A, you start out with 175 liters then you add 7 liters times however many minutes has gone by. The second had 550 liters and but loses 8 times however many minutes has gone by for that.
Answer:
-9 ≤ y ≤ 8
Step-by-step explanation:
look at the endpoints of the segment; (7, 8) and (-2, -9)
the y-values represent the range and they go from -9 to 8, inclusive
Find the scale factor of the height:
6.5cm / 2.5cm = 2.6
Multiply the known pages by the scale factor:
150 x 2.6 = 390 pieces of paper.