Un técnico mientras hace volar un dron, sobre una multitud, observa a una persona con un ángulo de depresión de π/5 rad. Treinta segundos después, vuelve a divisarla con un ángulo de 80 grados centesimales. El dron vuela horizontalmente a una velocidad constante de 60km/h. ¿A qué altura vuela el dron? ayuda urgente

If you answer right ill give brainliest, : )

Lance lived in portugal and brazil for a total of 14 months to learn portuguese. he learned an average of 130 new words per month when he lived in portugal, and an average of 150 new words per month when he lived in brazil. in total he learned 1920 new words. write a system of equations to represent the situation. use x to represent portugal, and y to represent brazil

Abarbecue sold 26 hamburgers and hot dogs. hamburgers sell for $3.50 each and hot dogs sell for $2.00 each. if the barbecue made $70 in sales, determine and state the number of hot dogs sold.