Krypton-85 has a half-life of 10.76 years. It decays into rubidium-85. Suppose a sample contains 4 atoms of krypton-85 and 12 atoms of rubidium-85.
About how old is the sample?

There are over 400,000 honeybee hives in britain run by 44,000 professional beekeepers. select the best answer from the choices provided true false

Active reading to kill a mockingbird, twelve through twenty-one during the trial, atticus questions four witnesses. as you read, complete the chart below by noting the key information given by each witness during questioning. also note how each witness behaves on the stand, commenting on the general impression the witness makes. answer for the following characters: the sheriff, bob ewell, miss ewell, and tom robinson.

What is the first step in summarizing a plot? restating central ideas and key details eliminating minor or unimportant details connecting ideas with logical transitions identifying important words and phrase