For this you need the pythagorean theorem.
5 squared is: 25
25+25= 50
then u need the square root of 50 which is approximately= 7.07107 cm
The length of the diagonal AB is 7.07107 cm
$4,950 because 6.5 of 3000 is 195 so multiply that by 10
Steps:
1. Draw a number line and put the numbers 1 and 2. (Do not put the numbers very close together)
2. Between 1 and 2 put 1/6, 2/6, 3/6, 4/6, 5,6, and 6/6. If they wanted it into seventh sense then you would do the same thing but split it into 7.
*I will send you a pic of what I mean
ANSWER:
2.33 foot
STEP-BY-STEP EXPLANATION:
We can calculate the distance from the staircase to the wall, by means of the trigonometric cosine ratio, which is the following:

Replacing and solving for x:

The distance would be 2.33 foot