4.52 avg rating — 27,145 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 — 5,442,957 ratings

4.02 avg rating — 4,536,024 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 — 3,886,587 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 — 3,193,963 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 — 872,780 ratings

4.13 avg rating — 1,871,632 ratings

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it was amazing 5.00 avg rating — 1 rating

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4.50 avg rating — 2 ratings