What is the second factor when 0.200 is written scientific notation

Name the most appropriate metric unit for each measurement like the mass of cow

The functions below show the amount of money bella and sweet t had saved after earning money for doing chores. which description best compares the two functions?

Calculate the average rate of change over the interval [1, 3] for the following function. f(x)=4(5)^x a. -260 b. 260 c. 240 d. -240