finn has 4 pairs of black shoes and 4 pairs of brown shoes on his shoe rack. he picks one pair of shoes off of the rack, records its color, puts it back on the rack. what is the probability of taking out a black pair followed by brown pair?

Each of the walls of a room with square dimensions has been built with two pieces of sheetrock, a smaller one and a larger one. the length of all the smaller ones is the same and is stored in the variable small. similarly, the length of all the larger ones is the same and is stored in the variable large. write a single expression whose value is the total area of this room. do not use any method invocations.

Hundred and tens tables to make 430 in five different ways

Jonathan puts $400 in a bank account. each year the account earns 6% simple interest. how much interest will be earned in 5 years?