Mina asked four friends to explain how each one solved the expression 176.3 15.75  . Here are their explanations: Ivy’s explanation: I lined up the numbers to subtract. 176.3 15.75 18.8  Hannah’s explanation: I lined up the two decimals according to place value. I put a 0 in the hundredths place to make it easier for me to subtract. 176.30 15.75 161.45  Jose’s explanation: I lined up the two decimals according to place value. 176.3 15.75 161.45  An’s explanation: I counted up from 15.75 to 176.3 to find the difference. I underlined each number I added on each line. 15.75 0.25 16 16 4 20 20 150 170 170 6 176 176 0.3 176.3           I rearranged the underlined numbers to make them easier to add: 150 6 4 3 0.25 163.25      . (d) Explain each student’s mistake. (e) Solve the problem correctly. Show your work.