=705(82+19−1)=705⋅100=70500

a/b x 3/4 +2/5 =2

a/b x 3/4         =2-2/5

a/b x3/4           =8/5

a/b                   =8/5 : 3/4

a/b                    =32/15

1C

2D

3B

4D

5B

6C

7C

8A

9D

A

thế vật năng là:

\(W_t=mgh=0,5.10.2=5J\)

quá chuẩn

\(3,18.99+3,18=3,18.\left[99+1\right]=3,18.100=318\)

936

\(936\)

1. whose I cannot remember his name is a famous businessman.

2. bought for me on my last birthday by my mom was so lovely.