4.52 avg rating — 27,193 ratings

"They used to teach this in High School. Sad they don’t anymore. No wonder our education system is in the crapper. "

4.20 avg rating — 5,592,276 ratings

4.02 avg rating — 4,660,185 ratings

"They used to teach this in High School. Sad they don’t anymore. No wonder our education system is in the crapper. "

3.80 avg rating — 3,944,328 ratings

"They used to teach this in High School. Sad they don’t anymore. No wonder our education system is in the crapper. "

3.70 avg rating — 3,247,289 ratings

"They used to teach this in High School. Sad they don’t anymore. No wonder our education system is in the crapper. "

3.80 avg rating — 883,230 ratings

4.13 avg rating — 1,930,931 ratings

3.80 avg rating — 7,251 ratings

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it was amazing 5.00 avg rating — 1 rating

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4.50 avg rating — 2 ratings