Please help me. I need to Convert 4.57 hectograms to milligrams.

Successful implementation of a new system is based on three independent modules. module 1 works properly with probability 0.96. for modules 2 and 3, these probabilities equal 0.95 and 0.90. compute the probability that at least one of these three modules fails to work properly.

M.xyz =radians. covert this radian measure to its equivalent measure in degrees.

Find the rate at which the water is now flowing from the tap give your answer cubic centimetres per second