The average annual cost of educating a high school student in the United States is about $7,750. In Kenya, Uganda, and Tanzania combined, the average cost per year is about $650.Thus, 12 girls can go to school in East Africa for the price on one student in the US.In some areas a girl can attend high school for as little as $500.Although the exact costs vary by school, town, and country, a small donation can make a big difference in the life of an African girl.hus, 12 girls can go to school in East Africa for the price on one student in the US. In some areas a girl can attend high school for as little as $500. Although the exact costs vary by school, town, and country, a small donation can make a big difference in the life of an African girl.