Helli i need with part a and b

A sample of a radioactive substance has an initial mass of 58.2 me. This substance follows a continuous exponential decay model and has s batting melt ounutes (a) Let : be the time (in minutes) since the start of the experiment, and OIno let y be the amount of the substance at time t. Write a formula relating y to t. X Use exact expressions to fill in the missing parts of the formula. Do not use approximations. (b) How much will be present in 6 minutes? Do not round any intermediate computations, and round your answer to the nearest tenth. Submit Assignmery