If Isabella Rodriguez is single and in the 35 percent tax bracket, calculate the tax associated with each of the following transactions. (Hint: Use the IRS regulations for capital gains in effect in 2018.) Treat each of the following cases as independent of the others. Tax savings should be preceded by a sign. Round the answers to the nearest cent. a. She sold stock for $2,300 that she purchased for $2,000 6 months earlier. $ b. She sold bonds for $5,300 that she purchased for $4,000 3 years earlier. $ c. She sold stock for $1,720 that she purchased for $2,000 24 months earlier. Assume this to be the only Stock in Isabella's portfolio