The answer is 90. you add them all up and divide it by 4
Because X squared isn't the same as 2 multiplied by X(any variable) meaning the moment you change your variable the expressions wouldn't equivalent.
EX.) 2*420=840 and 420^2=176400
Answer:

Step-by-step explanation:
Given

Required
Values of x that make it true
First: solve the inequality.

Collect Like Terms


Multiply both sides by -1

--- The inequality changes when multiplied by a negative value
So, the solution implies that the value of x is greater than 5 (i.e. 6, 7, 8..)
Hence, the set is:

28 - s - 6(Sophias age) = Sophia is twenty two and eric is 16.