21. An isotope (X5) of this element has been synthesized in the lab. This 5 points isotope has a half-life of 27.7 days. How long will it take for 600 g of
the substance to decay to 45 g?*
I need your help

correct answer is infinitely many solutions

step-by-step explanation:

2(2x + 3) = -4 + 2(2x + 5)

solving the above equation:

4x + 6 = -4 +4x +10

combining like terms

4x -4x = -4+10-6

0=0

since both sides are 0=0, we end up into true statement it means it has infinite many solutions.

so correct answer is infinitely many solutions

im not sure what this means: mc011-7.jpg

step-by-step explanation: