<span><span>V. C. Wynne-Edwards and Konrad Lorenz were
the first authors to raise the concept of
altruism</span><span>. This was later
reiterated by </span>David Sloan Wilson, E. O. Wilson and Elliott Sober<span> in 1994 whose works referred to social organisms such as ants</span></span>.
Answer:
CU
Explanation:
Cu is the correct answer if I'm correct
To answer this question, you need to convert the 16.1 megabyte into second first. If the rate is 93kb/second, then the calculation would be:
16.1 mb x (1000kb/mb) / (93kb/second)= 173.12 second.
Then 16.1 mb music will last for 173.12 second. After that you can convert it into minutes: 173.12/ (60second/min)= 2.885 minutes.
1) Chemical equation.

2) Types of reaction.
In the reaction above, we can see that two different compounds get together to form a new compound. <em>This is called a synthesis or a combination.</em>
Decomposition: A compound is broken down into simpler compounds.
Combustion: A compound containing Carbon and Hydrogen combines with oxygen.
Double replacement: Positive and negative ions in two compounds switch places.
The answer
the main formula to solve such a problem is given by:
m = m0 x (1/2) ^t /T
where,
m is the amount of the mass after time t
m0 is the amount of the initial mass
T is the half-time found by means of the formula T = log 2 / λ = 22.3 years
at t= 0, m0 = <span>7.50 g, we can find the valuo of the mass after 17.5 years by applying the formula given above:
</span>
m = m0 x (1/2) ^t /T
m0 = 7.50 g, t= 17.5 years, T = 22.3 years
so m=7.50 x (0.5)^17.5 / 22.3=7.50 x (0.5)^0.78 = 4.36 g