Calculate the percentage change in the area of a rectangle when its length increases by 10% and its width decreases by 10%​

Ithink that it’s mali

Tropical climate is experienced in the nothern countries of south america

Ithink its b but i'm not sure.

"central america is subject to fierce which drop large amounts of on the region. another threat in the region is activity such as earthquakes and volcanoes caused by the shifting of the earth's large waves called may result in mass destruction. frequently crops are wiped out causing in the region." where is the question