27. Se consideră numerele a=-9 și b= +4 Calculati: a) a-b;
b)|a-b-(-13);
c) |al-161;
d) -a-b+|-20;
e) (-a)-(+b)+(-15);
f) \a-b1-4-2.​

i this is the answer i looked it up on google so in 2020 new year's occurs on january 1st, 2020 and christmas on december 25th, 2020. these dates are 51 weeks and 2 days apart, not one week apart (during the year new year's occurs before christmas).

well, people who live in cold areas tend to dress with more layers to stay warm.their homes mostly likely have a some sort of heat sorce as well as warm food.

in warm areas homes can have fans, air conditioners, central air to stay cool.people tend to dress in in less layers or thinner layers to stay cool.food that can be served such as ice cream or some type of cool treats