Iron-59 has a half-life of 44.5 days. How much of a 3.00 mg sample will be left after 222.5 days? A about 6.00 milligrams
B about 0.90 milligrams
C about 0.03 milligrams
D about 0.09 milligrams

Iwould say rat and vsu but i’m not 100% sure

first anwser choice.

step-by-step explanation:

the greater/less or equal to symbol (> or < with the line at the bottom) is a closed/filled in circle.

when multiplying or dividing by a negative on both sides you have to flip the inequality sign. this rule only applies to multiplying or dividing by a negative number in inequality equations. this rule is really important.

-5c + 2 _< _27

subtract from both sides by 2

-5c _< _ 27

divide both sides by -5

c _< _ 5.4

flip the inequality sign

c _> _5.4

the only possible answer that would match the simplified inequality is the first answer choice

Understanding what? lol

Ithink it’s a as the answer.