x+100=1000

=>x=1000-100

=>x=900

K cho mik với nhé Blood Red Dragon fiery heat

a) 1/90 - 1/72 - 1/56 - 1/42 - 1/30 - 1/20 - 1/12  - 1/6 - 1/2

 = 1/10.9 - 1/9.8 - 1/8.7 - 1/7.6 - 1/6.5 - 1/5.4 - 1/4.3 - 1/3.2 - 1/2.1

=  1/10 - 1

=   0,1 - 1

=      -0,9

7a -7a + 28=28

a-4(ư)28 = -1;1;-4;4;-7;7

thay vào tự làm dc rùi

1 ) Those are my pencil cases.

2 ) Linda has some kites.She loves her kites.

3 ) I and my sister are in the bedroom

4 ) Tony's kites toys .His toys are clean and new

5 ) Are these your marker ? Yes,they are