Answer:
4
Step-by-step explanation:
2.5+1 1/2
Change the fraction to a decimal
2.5 + 1.5
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-16
-16... using d = b²-4ac
Answer:33
1) -4x-6x+8x=2-6
-2x=-4
x=-2
2)3x-4x=12-15
-1x=-3
x=3
3) 12.5x+10.25=680-410
22.75x=270
x=11.86
