A ratio compares the frequency of one value for a variable with another value for the variable. The first value identified in a ratio must be to the left of the colon (:) and the second value must be to the right of the colon (1st value : 2nd value).
The Canadian two-dollar coin, commonly called the toonie, is the most valuable of the frequently used Canadian coins. It was introduced on February 19, 1996, by Public Works minister Diane Marleau.
The first US nuclear weapon came to Canada in 1950 when the United States Air Force Strategic Air Command stationed 11 model 1561 Fat Man atomic bombs at Goose AFB, Labrador. From 1963 to 1984, Canada fielded a total of four tactical nuclear weapons systems which deployed several hundred nuclear warheads.