На координатной прямой дана точка А(а) и точки В(а + 3), С(а - 1), D(a + n); б) на координатной прямой даны точка В(b) и точка X, удалённая от точки В на расстояние,

N: Hi, Susan. This is Nora. I'm calling from Mocsow.
S: From Moscow? What are you doing in Moscow?
N:I'm on holidays.
S: How's the weather in Moscow? Is it cold? Are you having a free time?
N: I'm having a free time. The weather is beautiful here.
S: I'm happy to hear that