Aradioactive material has a half-life of 18.4 days. after 55.2 days, there were 177 mg of the material. what mass of the material was originally present?

the answer would be 1 1/72

step-by-step explanation:

you can rewrite the equation by separating the parts and then solving individually:

10-9=1

1/8 - 1/9=

find l c d and then combine:

1 1/72

answer:

125 yards

explanation:

75+50=125. that is my answer

for a it would be 24 children.

for b i don't understand the question. is it saying for each individual person they pick 5 reds to 7 greens or is it the whole group. clarify and i hope this can you.

step-by-step explanation: