Aclassroom has a length of 20 feet and a width of 30 feet. the flooring is to be replaced by tiles. if each tile has a length of 3 feet and a weight of 2 feet, how many tile are needed to cover the classroom floor?

*let m∠cob = 50°30’, m∠aob = 70° and m∠aoc = 20°30’. could point c be in the interior of ∠aob? why?

If value of cos330° is √3/2 then find tan165°.

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.