Need help on part C

Nathalia Peregrino 09/18/22 7:04 PM bra and Question 26, 7.2.36 HW Score: 93.65%, 39.33 of 42 points Part 3 of 3 Points: 0.33 of 1 Save oughly 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 men. Fortunately, thyroid cancer can be treated successfully in many cases with radioactive iodine, or I-131. This unstable form of iodine has a half-life of 8 days and is given in nall doses measured in millicuries. Suppose a patient is given an initial dose of 90 millicuries. Find the function that gives the amount of I-131 in the body after t2 0 days. How long does it take for the amount of I-131 to reach 15% of the initial dose? Finding the initial dose to give a particular patient is a critical calculation. How does the time to reach 15% of the initial dose change if the initial dose is increased by 5%? Do not round until the final answer. Then round to the nearest whole number as needed!) A. The time to reach 15% of the initial dose increases to 27 days. B. The time to reach 15% of the initial dose decreases to days C. The time to reach 15% of the initial dose stays the same. U n A C V E B & -M Less