Sheila Cox is a single mother who takes care of her 14 year old daughter, Susan. Susan has a physical infirmity. The infirmity is not severe enough to qualify for the disability tax credit. Susan has 2020 Net Income For Tax Purposes of $3,400. Determine the amount of any 2020 tax credits that Sheila will have related to her daughter.

Aproperty title search firm is contemplating using online software to increase its search productivity. currently an average of 40 minutes is needed to do a title search. the researcher cost is $2 per minute. clients are charged a fee of $400. company a's software would reduce the average search time by 10 minutes, at a cost of $3.50 per search. company b's software would reduce the average search time by 12 minutes at a cost of $3.60 per search. which option would have the higher productivity in terms of revenue per dollar of input?