Aparticular isotope has a half-life of 55 days. if you start with 1 kilogram of this isotope, how much will remain after 120 days? after 240 days? (round to three decimal places as needed.)

What is this inequality notation? t is less then or equal to 2

Astandard american eskimo dog has a mean weight of 30 pounds with a standard deviation of 2 pounds. assuming the weights of standard eskimo dogs are normally distributed, what range of weights would 99.7% of the dogs have? approximately 26–34 pounds approximately 24–36 pounds approximately 28–32 pounds approximately 29–31 pounds

Ftara spends $219 a month for her car payment and she makes $3,200 a month, what percent of her monthly income is spent on her car payment?