Is it value per square foot?
a) The average arithmetic mean is calculated by adding all of the values and then dividing the sum by the total number of values.

Which is 200.3.
b) Assume that the new average mean is 201, then

Solve for x.

Divide by 2604 to solve for x.

So the height of the new player is 175 cm.
"<span>The sum of the squares of the digits is 26"
</span>10t + u = 26 ---->(1)
<span>"If the number is decreased by the number with its digits reversed, the result is 36"
u - 10t =36 -----> (2)
By subtracting the equation we can find t.
</span> u+10t = 26)<span>
-(u-10t=36)</span>
______________
0u +20t = 26 -36
---> 20t = -10
t= -10/20
t= -1/2
Inserting value t in (1)
10t + u = 26
10(-1/2) + u= 26
-5+u=26
u= 26+5 = 31
<span>
Using u and t in the original expression 10t+u express a positive number
10t+u
= 10(-1/2) +u
= -5 + 31
= 26
----> Proves this statement is true
</span>"The sum of the squares of the digits is 26"
10t + u = 26 <span>
</span>