Geometry is another subject in which symmetry is important. <span />
I believe it would be 45 is greater than or equal to 3x + (3x-1) + [(3x-1)-4]
See attached picture for answre
10 5's go into 55 and
1 10 goes into 11
The answers I gave are only if you want them in 10's
The amount of substance left of a radioactive element of half life,

after a time, t, is given by:

Given that <span>potassium-40 has a half life of approximately 1.25 billion
years.
The number of years it will take for 0.1% of potassium-40 to remain is obtained as follows:

Therefore, </span><span>the maximum age of a fossil that we could date using 40k is
12.5 billion years.</span>