La masa forestal de un bosque sufrió las siguientes variaciones a lo largo de tres décadas: de 1990 a 2000 aumentó un 28%, de 2000 a 2010 disminuyó un 40%, del 2010 a 2020 aumentó un 15%. ¿Qué variación porcentual experimentó de 1990 al 2020?

.632

step-by-step explanation:

6 * 1/10 = 3/5

3*0.01 = 0.03

3/5 + 0.03 = .63

2*0.002 = .002

.63 + 0.002 = .632

step-by-step explanation:

ok one would be money, and the other would be refreshments or something similar. if each bag of popcorn is 5.00 and each drink is half of that that means drinks are 2.50 the proper way to do that would to look and see how much of each you can buy without exceeding a limit of 30.00