X is not anything unless you show the equation with the variable
Answer:
<h3> - 4</h3>
Step-by-step explanation:

Answer:
12.3
Step-by-step explanation:
271-119= 152
get square root of 152
12.3x12.3=152
4.825.48623 i think not sure
I'm thinking 75% because the increase from 4 to 7 is 2