Word problem below in description

Question

seven hundred grams of a radioactive material decays according to the formula A=700(2/3)^2, where t is measured in years. Find the amount present in 10 years. Round to the nearest one tenth of a gram 

Answer 1

A radioactive materials decay according to the general formula: A(t)=A₀e^-kt where A_o and A(t) denote the initial amount and amount of material over time t measured in years, and k is constant value. Please correct your problem definition, it seems incomplete.