What could be a partial quotient for 145 divided by 5

If f(x)=2x-6 and g(x)=3x+9, find (f-g)(x)

Which expression demonstrates the use of the commutative property of addition in the first step of simplifying the expression (-1+i)+(21+5i)+0

Type the correct answer in each box. use numerals instead of words. if necessary, use / fir the fraction bar(s). the graph represents the piecewise function: h