The first answer for the first question
The first and last answer for the second question
52 tests because you would multiply 28 by 100 then divide by 54. You would get 51.851, but you cannot have and 8th of a test, so you would round up
Rounding is not a good strategy for 1320<span>÷6 because you get a perfect full number which is 220. There is basically nothing to round. Usually when you are rounding, you are dealing with decimal points.</span>
Answer:
1. Neptune (lightest)
2. Jupiter
3. Mercury
4. Venus
5. Saturn
6. Earth
7. Mars
8. Uranus (heaviest)
Explanation:
Neptune: 1.02 x 1026 = 1046.52 kg
Jupiter: 1.90 x 1027 = 1951 . 3 kg
Mercury: 3.30 x 1023 = 3375.9 kg
Venus: 4.87 x 1024 = 4986.88 kg
Saturn: 5.68 x 1026 = 5827.68 kg
Earth: 5.97 x 1024 = 6113.28 kg
Mars: 6.42 x 1023 =6567.66 kg
Uranus: 8.68 x 1025 = 8897 kg
hope this was what you were looking for :)