V A specific radioactive substance follows a continuous exponential decay model. It has a half-life of 17 minutes. At the start of the experiment, 952.1 g is present. (a) Let t be the time (in minutes) since the start of the experiment, and Iety be the amount of the substance at time t. Write a formula relating y to 1. Use exact expressions to fill in the missing parts of the formula. Do not use approximations. y = Dem' (b) How much will be present in 5 minutes? Do not round any intermediate computations, and round your answer to the nearest tenth. [lg