Can someone please explain it to me ASAP???!!! This is exponential model. Roughly 12,000 people in a certain country are diagnosed with thyroid cancer every year, which accounts for 1% of all cancer cases. It occurs in women three times as frequently as in men. Fortunately, thyroid cancer can be treated successfully in many cases with radioactive iodine, or l-131. This unstable form of iodine has a half-life of 8 days and is given in small doses measured in millicuries. a. Suppose a patient is given an initial dose of 100 millicuries. Find the function that gives the amount of I-131 in the body after t20 days. b. How long does it take for the amount of l-131 to reach 25% of the initial dose? c. Finding the initial dose to give a particular patient is a critical calculation. How does the time to reach 25% of the initial dose change if the initial dose is increased by 5%? a. Suppose a patient is given an initial dose of 100 millicuries. Find the function that gives the amount of I-131 in the body after t20 days. y(t) =| (Type an expression. Round coefficients to six decimal places as needed.)

ly 12.000 people in a certain country are diagnosed with thyroid cancer every year, which accounts for 1% of all cancer cases. it occurs in women three tir iuently as in men. Fortunately, thyroid cancer can be treated successfully in many cases with radioactive iodine, or 1-131. This unstable form of iodine has a e of 8 days and is g'wen in small doses measured in millicuries. )pose a patient is given an initial dose of 100 millicuries. Find the function that gives the amount of l-131 in the body after t a 0 days. w long does it take for the amount of H31 to reach 25% of the initial dose? iding the initial dose to give a particular patient is a critical calculation. How does the time to reach 25% of the initial dose change if the initial dose is increase t\"? ippcse a patient is given an initial dose of 100 millicunes. Find the function that gives the amount of 1-131 in the body after t a 0 days. =D be an expression. Round coetticients to six decimal places as needed)