Question

The equation y = 1.55x + 110,419 approximates the total cost, in dollars, of raising a child in the United States from birth to 17 years, given the household’s annual income, x. Approximately how much would it cost to raise a child in a household with an annual income of $78,300

Answer 1

The equation is y=1.55X+110,419 and they give you X so put that in: y=1.55(78,300)+110,419.
Now you multiply: 1.55(78,300)=121,365, y=121,365+110,419.
Now add: 121,365+110,419=231,784 :)