What is the appropriate measurement for the weight of an african elephant?

The average weight of African elephant is about 2 .5 to 7 tons or we can say that 1800 kg to 6300 kg.

Weight of females are about 3 to 4 tons .On the other hand weight of males are about 2.5 to 7 tons.

African element can live up to 70 years but on the other hand the life of Asian

elephants up to 60 years.

the mistake in the pattern is that :

b. the decimal point was moved one too many place values each time

the correct pattern could be made by :

b. moving the decimal point to the right the same numbers of place values as the exponents