Please help thankss! The page I attached helps with the question. Question: Doppler Dan bought his horn from the honk ink they guaranteed that the horn will honk at a frequency of 350 hz. use the equation on the previous page to calculate the wavelength of sound made by Dans horn. Formula: wavelength/ frequency

Acoffee shop orders at most $3,500 worth of coffee and tea. the shop needs to make a profit of at least $1,900 on the order. the possible combinations of coffee and tea for this order are given by this system of inequalities, where c = pounds of coffee and t = pounds of tea: 6c + 13t ≤ 3,500 3.50c + 4t ≥ 1,900 which graph's shaded region represents the possible combinations of coffee and tea for this order?