Which equation best represents this situation? the number 39 is equal to 13 subtracted from an unknown number. a. 39 = r ÷ 13 b. 39 = 13 + r c. 39 = r – 13 d. 39 = 13r

Aline has a slope of and a y-intercept of –2. what is the x-intercept of the line?

Alicia puts $400 in a bank account. each year the account earns 5% simple interest. how much money will be in her bank account in six months?

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.