“During a discussion in science class Sharon learned that a birth of an elephant Weighs 230 pounds in for herd of elephants tracked by conversationalist about 20 calves were born during the summer in Scientific notation expressed approximately how much the Calves weighed all together.”

Answer 1

20*230 = 2.0*10^1 * 2.3*10^2 = 4.6*10^3