He price of a computer was decreased by 20% to £136.
What was the price before the decrease?

Which one is true about the hexagons ?

Suppose that 3% of all athletes are using the endurance-enhancing hormone epo (you should be able to simply compute the percentage of all athletes that are not using epo). for our purposes, a “positive” test result is one that indicates presence of epo in an athlete’s bloodstream. the probability of a positive result, given the presence of epo is .99. the probability of a negative result, when epo is not present, is .90. what is the probability that a randomly selected athlete tests positive for epo? 0.0297

Why is it so easy to buy on impulse and overspend with a credit card? what could you do to counteract this tendency?