Use PEMDAS:
P Parentheses first
E Exponents (ie Powers and Square Roots, etc.)
MD Multiplication and Division (left-to-right)
AS Addition and Subtraction (left-to-right)
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[tex]-1.7-2.3\times(-0.15)\div0.1+2\\\\=-1.7+0.345\div0.1+2\\\\=-1.7+3.45+2\\\\=-1.7+(3.45+2)\\\\=-1.7+5.45\\\\=5.45-1.7\\\\=3.75\\\\Answer:\ \boxed{d.\ 3.75}[/tex]
