According to Descartes' Rule of Signs, can the polynomial function have exactly 0 positive real zeroes? Choose your answer based on the rule only. f(x) = x^3–7x^2–4^x–4
A car averages 27 miles per gallon. If gas costs $4.04 per gallon, how much would the gas cost for this car to travel 2,727 typical miles?
Rosa wants to buy a charm bracelet. Rockport Fine Jewelry charges $5 per charm, plus $25 for the bracelet. Pennington Jewelers, in contrast, charges $6 per charm and $20 for the bracelet. If Rosa wants to add a certain number of charms to her bracelet, the cost will be the same at either jewelry shop. What would the total cost of the bracelet be?