Lớp 6

Tìm 2 chữ số tận cùng của: 3^3^1001 (3^3^1001 là lũy thừa tầng)

x ( 3 - y ) - y = 0

Em mong các thầy giúp đỡ

Cho 5a+3b chia hết cho 7 (ab) thuộc n.Chứng minh rằng 3a-b chia hết cho 7

Choose the correct answer:

If it (hot) ________ tomorrow, I (wear)_______ my new summer skirt.

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If I (find) __________ a cheap room, I (stay) __________ a fortnight.

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It (be) __________ quicker if you (use) __________ a computer.

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 If you (not, hurry) __________, you (miss) __________ the bus.

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If I (come) __________ soon, I (phone) __________ you.

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If he (not, cook) __________ the meal himself, help him.

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If the boy (eat) __________ that apple, he (be) __________ ill.