Solve: 8 logb(256)

b=

If you roll two fair dice (one black die and one white die), in how many ways can you obtain a 4 on at least one die?

Define multiplicative inverse. give an example of a number and its multiplicative inverse.

Aconstruction worker has rope 9 m long he needs to cut it in pieces that are each 3 /5 m long how many such pieces can he cut without having any rope leftover?