Answer:
Dennis drove for [tex]\bold{10\frac{11}{60}}[/tex] hours this week
(10 hours 11 minutes)
Step-by-step explanation:
[tex]3\frac13+4\frac34+2\frac1{10}=3+4+2+\frac13+\frac34+\frac1{10}=9+\frac{20}{60}+\frac{45}{60}+\frac6{60}=9+\frac{71}{60}=\\\\=9+1\frac{11}{60}=10\frac{11}{60}[/tex]
