<span>''Roaring" economy of the 20s meant that investors could make wildly high returns on their investment in relatively small amounts of time, especially since there was practically no government regulation of investment under the Great Depression, which began with the crash of 1929. </span>
<span>Me gusta ver televisión, pero me aburre la natación.
Is this what you mean? Hope this helps.
</span>
Calculus was developed by Isaac Newton.
B- Newton
