Tony leaves home at 7: 30 am and drives for 1 1/4 hours to work. he works for 4 hours and then has a half hour lunch break. tony then works 4 1/2 hours more. finally he drives for 1 1/4 hours to get back home. at what time does tony arrive at home ?

answer: i'm not sure

step-by-step explanation:

the simplified form is

step-by-step explanation:

we want to simplify the expression,

let us change the middle bar to a normal division sign to obtain,

we multiply the first fraction by the reciprocal of the second fraction to obtain,

we factor to obtain,

we cancel the common factors to get,

we simplify to get,

the correct answer is b