Each of 5 boys randomly chooses a watch from 12 different styles. What is the probability that at least 2 boys choose the same type of watch? choices
≈ 0.3819
≈ 0.5387
≈ 0.7387
≈ 0.6181

Bismuth-210 is an isotope that radioactively decays by about 13% each day, meaning 13% of the remaining bismuth-210 transforms into another atom (polonium-210 in this case) each day. if you begin with 233 mg of bismuth-210, how much remains after 8 days?

Write 17/20 as a decimal and as a percent.

Which of the symbols correctly relates the two numbers below check all that apply 6? 6