Suppose that 3 -you notes are written and 3 envelopes are addressed. accidentally, the notes are randomly inserted into the envelopes and mailed without checking the addresses. what is the probability that all the notes will be inserted into the correct envelopes? the probability is 0.17.

The probability  that all the notes will be inserted into the correct envelopes is 1/6 or 0.166667.

Step-by-step explanation:

All the possible combinations are given by 3!=3x2x1=6. There are 6 possible ways in which the letters can be mailed. One of these ways is that the direction is correct. So the probability is 1/6=0.166667.

it will cost dollar $540

the living room is 3 which means if we divide 325/3 then we get $108

therefore if 1part of the living room cost $108 and 3 costed $325

then total 5part of the room will cost 5*108 which gives $540

part a: 1.08

part b: 27.59