a) M={CAM TƯƠI;CÓC ỔI;DƯA HẤU}

b) ĐÀO ∈ M     CÓC ϵ/ M    DƯA HẤU ∈ M

c) Đủ vì 2 cốc cam tươi hết 46000 đồng và 3 cốc dưa hấu hết 75000 đồng tổng hết 121000 đồng

Dear Phu,

It’s great to hear from you. I want to tell you about my mother.

My mother is the one who I love most in my life. My mother is a 43-year-old household wife. She’s tall, slim and especially she has a beautiful long black hair. My mom loves every members of the family with all her heart. When I was a kid, mom taught me to play piano at each weekend. I still remember the songs which include many childhood’s experiences. Not only taught me to play piano, she also taught me to be a better human. I love the moral stories that she told me before I fell asleep every night. We’re really appreciate mother’s effort, patient and her hard work to conserve the family’s happiness. My mother is an indispensable part of my life. When I grow up, I want to be a woman like hẻ.

How about your father? Look forward to hearing soon.

Bye,

oh chac ban xui thoi

10 x 6 : 2

= 60 : 2

= 30

Vậy kết quả của phép tính 10 x 6 : 2 = 30

tính x,y,z 

x=3y=27z và 2x-3y+4z=48

tìm x,y,z

x=3y=27 và 2x -3y + 4z=48

tìm x,y,z 

x=3y=27 và 2x-3y+4z=48

may nghi kh lam ma doi co an ha cuc cung