Answer:
You receive: $3,886.80
Total commission: nearly 11%
Step-by-step explanation:
Windows:
Commission = 8% or 0.08 as decimal
Sold = $5,400
You receive:
[tex]\$5,400\cdot 0.08=\$432[/tex]
Doors:
Commission = 12% or 0.12 as decimal
Sold = $28,790
You receive:
[tex]\$28,790\cdot 0.12=\$3,454.80[/tex]
Total:
You receive:
[tex]\$432+\$3,454.80=\$3,886.80[/tex]
Windows and doors:
[tex]\$5,400+\$28,790=\$34,190[/tex]
Commission:
[tex]\dfrac{3,886.80}{34,190}\cdot 100\%\approx 11\%[/tex]