Discover Questions

If det(A) = 5, then find det((2A)^-1). Can anyone tell me how to solve it? How can fond out matrix A from here? Is there a relationship between the shape of the tidal basin and the level of the tides? If i make 10.50 a hour and work about 40 hours how long it take me to get 3,000 dollars? If I eat like 200 raw almonds will I die from the cyanide in them.? Is time a measurement?