On monday, there was no snow on the ground in buffalo, new york. on tuesday, three inches of snow fell. on wensday a half an inch of snow melted. on thursday two and a half more inches fell. on friday another inch and a half melted. how much snow was left on the ground friday night.

For the rule of 78, for a 12-month period, the last term in the sequence is 12 and the series sums to 78. for an 10 month period, the last term is and the series sum is . for a 15 month period, the last term is and the series sum is . for a 20 month period, the last term is and the series sum is

How do you find the area of a triangle

Asurvey of 2,000 doctors showed that an average of 3 out of 5 doctors use brand x aspirin.how many doctors use brand x aspirin