Harold Crispen worked Monday, Tuesday, and Thursday from 9:00 A. M. to 4:30 P. M. with a half hour lunch each day. What were his total hours worked? 21 22.5 30 28

His total hours he worked is;

21

Step-by-step explanation:

The of hours between 9:00 A.M.  and 4:30 P.M. are;

Sum of the hours Harold Crispen spends at the workplace on a workday = (1 + 1 + 1 + 1 + 1 + 1 + 1 + 0.5) hours = 7.5 hours

The time Harold Crispen take for launch each workday = 0.5 hour

The number of hours Harold Crispen spend working each day = (7.5 - 0.5) hour

The number of hours Harold Crispen spend working each day = 7.0 hours/day

The number of days he worked = Monday + Tuesday + Thursday = 3 days

The total hours he worked = (The number of hours he works each day) × (The number of days he worked)

His total hours he worked = 7.0 hours/day × 3 days = 21.0 hours.

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step-by-step explanation: