Technetium-99m is used as a radioactive tracer for certain medical tests. It has a half-life of 1 day. Consider the function T where T(d)=100(2)^-d is the percent of technetium-99m remaining d days after the test. Which expression represents the number of days until only 5% remains?

answer: i could not see part the question so ill explain how to get the answer

step-by-step explanation: for instance the distance she travele d is 10 and she traveled the same amout each mile so do 10 divided by how many miles she drove each time and you ge your answer.

the correct answer is c) 2.

1/4 is the answer if i recall correctly.