Adrian used 1 3/4 kg of salt to melt the ice on his sidewalk. he then used another 3 4/5 kg on a driveway. if he originally bought 10 kg of salt, how much does he have left

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Step-by-step explanation:

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18. g

20. h 30 degree turn.

21. d 90 degree angles

and also 19 is a. a sphere not a cirlcle

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isaiah walks 3 miles due north, turns and then 5 miles due east. how far is he from his starting point?

a^2 + b^2 = c^2

let c = distance from starting point.

(3)^2 + (5)^2 = c^2

9 + 25 = c^2

34 = c^2

sqrt{34} = sqrt{c^2}

sqrt{34} = c