A farmer needs 10 grams of seed to plant one square metre of wheat. The farmer wants to plant a field of 15 herctares.

Work out how many kilograms of seed he needs

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

How many verticies does a triangular prims have

The volume of a box varies directly with its length if a box in the group has a length of 30inches and k=24 what is its volume