The local craft fair charges the vendors a flat rate of $15 plus $10 for each hour that they spend at the fair. If the vendor owed $65, how many hours did he remain at the craft fair?

Asales representative from a local radio station is trying to convince the owner of a small fitness club to advertise on her station. the representative says that if the owner begins advertising on the station today, the club's total number of members will grow exponentially each month. she uses the given expression to model the number of club members, in hundreds, after advertising for t months.

Use pascal's triangle to find the missing values. x4 - 4xb + 6x2 - ax + 1

Given that s is the centroid of triangle mno, find sq.