Answer:
Kristoff has $305 for food
Explanation:
The money Kristoff has to spend 450
For the internet bill he spent $45, to get this i divided 1/10 by 450
For the utilities Kristoff spent $100, to get this divided 2/9 by 450
At the end you add 100 and 45 which equals 145
450 minus 145 equals 305 therefore your answer is $305.
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