Right answers only 20 minute deadline
question 5 (1 point)

round 89,891 to the nearest ten-thousands place

89,890
89,900
89,000
90,000

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?

Graph y ≥ -x^2 - 1. click on the graph until the correct graph appears.

Atruck can be rented from company a $50 a day plus $0.60 per mile. company b charges $20 a day plus $0.80 per mile to rent the same truck. find the number of miles in a day at which the rental costs for company a and company b are the same