Calculate the tax for each taxable income of a head of household. a. $400,000 ($111,942)
b. $10,954 ($1,095.40)
c. $108,962 ($21,563.00)
d. $209,850 ($49,192.50)

The numbers in the parenthesis are the answers, but I don't know how to get there and I have to explain my work.

The american academy of pediatrics wants to conduct a survey of recently graduated family practitioners to assess why they did not choose pediatrics for their specialization. provide a definition of the population, suggest a sampling frame, and indicate the appropriate sampling unit.

Solve each quadratic equation by factoring and using the zero product property. n^2 - 49 = 0

Luis has a cooler filled with cans of soda. for every 5 cans of coke there are 3 cans of sprite. if there are 25 cans of coke, how mant cans of sprite are there?