A radioactive substance decays according to A=A0e−0.005t, where A0 is the initial amount and t is the time in years. If A0=490 grams, find the time for the radioactive substance to decay to 224 grams. Round your answer to two decimal places, if necessary.

What kinds of numbers have an odd number of factors?

The price of a particular stock is represented by the linear equation , where x represents the number of weeks the stock has been owned and y represents the price of the stock, in dollars. if this relationship continues, what is the price of the stock after it has been owned for 12 weeks? $92.55 $94.37 $100.52 $114.39

If 24 people have the flu out of 360 people, how many would have the flu out of 900. choose many ways you could use proportion that david would use to solve this problem