The 2021 st digit after the decimal point in the decimal expansion of $$\(4 \div 7\)$$ is

An rectangle is split into four triangles, as shown, by three line segments which divide the rectangle's longer sides into se...

For 3 years in a row on Dec. 31, interest of on all the money in my account was added to the account. If I began on Jan. 1 wi...