For rounding to the nearest 10, you look at the 1's place and determine if its over 5 or under 5. If it is under 5 you round down to the nearest ten, and if its over you go to the nearest ten. For 407, 7 is over 5, so it is 410.
Answer:
8th floor
Step-by-step explanation:
10 - 6 = 4
4 + 4 = 8
Answer:
7/8 and 14/16
Step-by-step explanation: for the first one just divide by 8 for the second one divide by 4
10≡x x=1, 2, 5, 10
So the set A={1, 2, 5, 10}