The complete question is:
Trapezoid JKLM is shown below.
What is the length, in centimeters, of KL ?
A. 12 cm
B. 10 cm
C. 9 cm
D. 6 cm
The mentioned figure is attached.
Answer:

Explanation:
1. KL is the hypotenuse of a right triangle; hence, you can use Pythagora's theorem to find its length.
2. The height 8 cm is one leg of the right triangle.
3. The other leg may be found by difference:

4. Now you can use Pythagora's theorem:

The value that occurs most often. If no number is repeated, then there is no mode for the list.
Answer:
3.5
Step-by-step explanation:
[(3 x 2) - 2 x 1.25] = [6 - 2 x 1.25]
= [6 - 2.5]
= 3.5
Answer:
Step-by-step explanation:
There are 19 - 5 = 14 students between the number 5 and 19, either side, so the total number is:
- 14 + 2 + 14 = 30 students