We must remember that 50 x 2 = 100. Multiplying numbers by 100 would be easier since all we have to do is add two zeros after. For example, 62 x100 = 6200.
Since we multiplied a number by 2, we must divide it by 2 after getting the product. To make this more clearer, for 12 x 50, for example, we have
12 x 50 = (12 x 100)/2 = 1200/2 = 600
Thus, the answer is C<span>.</span>
It’s okay if I don’t know give it a other try bc I don’t know what’s the answer
Option D: 
is the solution to the inequality in interval notation.
Explanation:
The number line shows the interval of numbers starting from 0 and goes on.
From the number line, it is obvious that the open circle at the point 0 indicates that we don't want to include the number 0.
Hence, in interval notation, we can write that the end values not to be included can be written with a round bracket ( )
Thus, the interval can be written as
Hence, the solution to the inequality in interval notation is
Therefore, Option D is the correct answer.
Yes I can help. what do you need
Number of ways the second grade students can sit on the first row is 5! = 5P5
Number of ways 15 first grade students can sit in the remaining 20 seats is 20P15
Therefore, required number of ways is 5P5 * 20P15. (option B)
