\

Find the interest on a Principal Balance of $10,000 over the course of eight years with an interest rate of 5.5%. Do this for: Simple Interest A = P(1 + r)' Round to the nearest penny. 1.937How long will it take 50 grams of a substance to decay to 10 grams, if the rate of decay is k = -0.345 ? Round to the nearest tenth.Your bank account is sitting on $28,000. You started with a principal balance of $20,000. It the interest rate was 6% compounded continuously, how long was your money in the bank? Round to the nearest tenth.You start with 500 grams of 238 Pu, which has a half-life of 87 years. How much is left after 1000 years? Round to the nearest tenth of a gram (one decimal place).It is the year 2235. Scientists have unearthed a rock sample from an old nuclear power plant where there was a big nuclear meltdown in 1995. This rock sample contains 0.2 grams of 258 Pu. How much Pu was in the sample initially? Half-life for Plutonium-238 is approximately 87 years. Round to the nearest tenth (one decimal place)