si se calcula que la cantidad de desechos solidos que se generan mundialmente (2010 millones de toneladas ) aumentara en un 70% en los próximos 30 años . ¿ cuantos millones de toneladas produciremos si seguimos con nuestras mismas practicas ?

Add the two expressions 3.8b - 7 and 2.9b + 9 enter your answer in simplified form

Imogene invested $8,000 in a bank account that pays 8 percent simple interest at the end of each year. her friend invested the same amount in stocks where the growth of the investment is represented as 2,000 times the square root of 2 less than the time lapsed in years. if y1 and y2 represent the amount earned in dollars and t is the time lapsed in years, which system of equations correctly represents the situation?

Which expression is equivalent to -5(3x - 6/7)