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When I want to use common cathode 7 segment in proteus , EE connection doesn't connect correctly .
What can I do to fix it? A club has 5 members. From these members they have to pick a president and vice president in how many ways can these 2 positions be filled.? The variance of 88? Tom are four times the age of his son. After 6 years, the sum of their ages is 52 years. Find the present age of his son? What is a gallon in metric conversion?