The half-life of Palladium-100 is 4 days. After 20 days a sample of Palladium-100 has been reduced to a mass of 7 mg. What was the initial mass in mg of the sample? What is the mass 6 weeks after the start

Alicense plate is to consist of 44 digits followed by 55 uppercase letters. determine the number of different license plates possible if the first and second digits must be? odd, and repetition is not permitted.

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

Ineed i been stuck on this question since yesterday