Modern medical advances might mean people could live 200 years. In 2009, the life expectancy is about 80 years. Assume that, due to modern advances, life expectancy gains 5.8 years every decade. From 2009, in how many years would humanity achieve a life expectancy of 130 years?

An alternative to car buying is to make monthly payments for a period of time, and then return the vehicle to the dealer, or purchase it. this is called

Aschool allots ? 1500 to spend on a trip to the theatre. theatre tickets have a regular cost of ? 55 each and are on offer for 1 5 off. a train ticket for the day will cost ? 12 each. if 2 teachers and the maximum number of students attend, how much money will the school have left over?

Assume that y varies inversely with x. if y=1.6 when x=0.5 find x when y=3.2