Each morning, Joey leaves his house at 7:25 A. M. It takes Joey 10 minutes to walk to the bus stop. Joey rides the bus for 50 minutes and then walks 5 minutes to his office. What time does Joey arrive at work?

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?

Which is equivalent to 10/12? options: 10/18 5/6 3/12 9/11

Daniel expanded the expression as shown below -2(-8x-4y+3/4)=-10x-8y-11/4 what errors did he make? check all that apply