EXTRA PROBLEM (Each question is extra 2 points). You have to show all your work on paper. One hundred kilograms of a radioactive substance decays to 52 kilograms in 10 years. ( Round your parameters to three decimal places)
a) Find the exponential equation.
S(t)=

b) How much remains after 60 years?
kg (Round your answer to three decimal places)

Which property is illustrated by the statement given below? raj raj.

The annual snowfall in a town has a mean of 38 inches and a standard deviation of 10 inches. last year there were 63 inches of snow. find the number of standard deviations from the mean that is, rounded to two decimal places. 0.44 standard deviations below the mean 2.50 standard deviations below the mean 0.44 standard deviations above the mean 2.50 standard deviations above the mean

Marina baked cookies. she gave 3/4 of the cookies to the scout bake sale. she shared the remaining 6 cookies with her friends. how many cookies did marina bake?