Quantitative Problem: Jenna is a single taxpayer. During 2018, she earned wages of $138,000. She doesn't itemize deductions, so she will take the standard deduction to calculate 2018 taxable income. In addition, during the year she sold common stock that she had owned for five years for a net profit of $8,000. How much does Jenna owe to the IRS for taxes

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With reference to the solutions, following things may be noted1) homogeneous solutions comprises of single phase.2) heterogeneous solution comprises of more than one phase.3) in colloidal solution, solute is evenly distributed in solvent. in such system, it is difficult to separate solute and solvent.4) in suspension, there is an uneven distribution of solute in solvent. in such system, solute and solvent gets separated on standing long.    blood is a homogeneous and colloidal solution,salad dressing is a heterogeneous and suspension solution.