Asurvey showed that 81% of adults need correction (eye glasses, contacts, surgery, etc.) for their eyesight. if 12 adults are randomly selected, find the probability that at least 11 of them need correction for their eyesight. is 11 a significantly high number of adults requiring eyesight correction?

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.

How do you find the circumfrance of a circle?

Hell . what are the solutions to `10x^2 - 38x - 8 = 0`? is this when i find the factors and use the numbers within the factors to determine the zeros? i hope that made sense lol