para una actividad escolar, un curso de 30 estudiantes decide reunir sobres de salsa de tomate y paquetes de tallarines. cada estudiante tiene la opción de contribuir con 2 sobres de salsa de tomate o 1 paquete de tallarines. con la participación de los 30 estudiantes se reunieron 42 productos entre sobres de salsa de tomate y paquetes de tallarines. ¿Cuántos sobres de salsa de tomate reunieron los estudiantes del curso?

Approximately how many more job openings are expected for security guards than pharmacy technicians? a. 2,000 b. 11,100 c. 21,000 d. 32,000

In one day there are too high tides into low tides and equally spaced intervals the high tide is observed to be 6 feet above the average sea level after six hours passed a low tide occurs at 6 feet below the average sea level in this task you will model this occurrence using a trigonometric function by using x as a measurement of time assume the first high tide occurs at x=0. a. what are the independent and dependent variables? b. determine these key features of the function that models the tide: 1.amplitude 2.period 3.frequency 4.midline 5.vertical shift 6.phase shift c. create a trigonometric function that models the ocean tide for a period of 12 hours. d. what is the height of the tide after 93 hours?

Gabrielle's age is two times mikhail's age. the sum of their ages is 84. what is mikhail's age?