2/5 as a decimal is 0.4
4*0.1=0.4
meaning x is 0.1
Answer:
verdical lines have an undefined slope so it might be 4
B. Divide the next number by four and just reverse the sign.
The correct answer it’s a
Your answer would be the time in takes for carbon-14 to elapse 3 half-lives.
5730 • 3 = 17190