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<u> </u><u>Sub (1, -5) into equation to find '</u><em><u>b'</u></em><u />
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I'm in college, I honestly don't know what it is but I hope you find it!
First you need to set up your decimal as a fraction
45 9
---- divided by 5 ------
100 20
9/20 is your answer
2.3+3.7-2/27.5-4*5.625. use pedmas.
=appromaxietly -16.57