Answer:
7 acres a day
Step-by-step explanation:
6x7=42, so if they planted 42 trees in 6 days, the 7 is the only number left.
Therefore, (drumroll please)
7!
4.6 because you round up because the next number is less than 5
Number of ways of picking a smaller number out of a bigger number is called combination.
Number of way of picking 3 stamps out of 4 is 4C3 (4 combination 3) = 4! / (3! x (4 - 3)!) = 4! / (3! x 1!) = (4 x 3 x 2 x 1) / (3 x 2 x 1 x 1) = 24 / 6 = 4 ways.
Option B: 50 is the value of the constant.
Explanation:
From the graph, the coordinates are
,
,
and 
Where the x coordinates denotes the width and the y - coordinates denotes the height.
Also, given that 
We need to determine the value of the constant
<u>Value of the constant:</u>
The value of the constant can be determined using the formula,

Since, all the coordinates lie on the same line, then all the coordinates have the constant.
Substituting the coordinate
in the above formula, we get,


Therefore, the value of constant is 50.
Hence, Option B is the correct answer.