The statement is true that if a taxpayer contributes a painting to a museum but reserves the right to use the painting for parties, he may not be allowed a deduction for the charitable contribution. If he donates or contributes the painting without certain conditions of his/her ownership, then he will be allowed for that deduction.
The answer would be letter A.
Answer:
The rock is 3.75 billion years ago.
Explanation:
Given that:
Half life = 1.25 billion years
1 billion years = 10⁹ years
So,
Half life = 1.25 × 10⁹ years

Where, k is rate constant
So,


The rate constant, k = 5.5452 × 10⁻¹⁰ years⁻¹
Initial amount [A₀] = 80 micrograms
Final amount
= 10 micrograms
Using integrated rate law for first order kinetics as:
![[A_t]=[A_0]e^{-kt}](https://tex.z-dn.net/?f=%5BA_t%5D%3D%5BA_0%5De%5E%7B-kt%7D)
So,





So,
<u>The rock is 3.75 billion years ago.</u>
Answer: B.) "More Federal programs are needed to protect the natural environment from pollution."
Explanation:
No human brain can indicate that much how much we are not more than that