Answer: (c) y<=-x+4
The area is shaded UNDER the boundary line, hence "<"
The boundary is plotted as solid line, hence "="
<span>* carbon-14 levels in a sample are undetectable after approximately nine half-lives.
Nine half-lives pf carbon 14 is 51,570 years.
Source:
https://en.wikipedia.org/wiki/Radiocarbon_dating
</span>
1.552 times 2 or 0.776 times 4
Answer:
I'm not 10)% sure but I believe it's A.
Step-by-step explanation:
450+140(6) = 1290
1290-1232 = he can save $58
