Fifteen students were surveyed to see whether they liked the color red or blue. there were three more students who preferred blue over red. write and solve a system of equations to find how many students preferred blue and how many preferred red.

What is the total surface area of this square pyramid?

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.

Adele is five years older than timothy. in three years, timothy will be 2/3 of adele’s age. what is adele‘s current age?