Answer:
It is B
Step-by-step explanation:
Here for 120, the expression for the start root and end root is given
<h3>What will be the expression for start root and enroot of 120?</h3>
Here we need to find 
By simplifying the given expression, we get:


by taking square roots on both sides we get
Thus for 120, the expression for the start root and end root is given
To know more about the Square roots follow
brainly.com/question/124481
The answer for the 2nd one is c ur welcome btw idk what 1 is sry
Answer:
16,383.33 years ( approx )
Step-by-step explanation:
Given equation that shows the amount of carbon-14 after t years,

Where,
= initial amount,
∵ 14% of
=
= 


Taking ln both sides,



Hence, the painting would be 16383.33 years old ( approx )