Final answer:
Hannah will earn a total commission of $189 for the day by adding her commission from phone sales ($70) and computer sales ($119).
Step-by-step explanation:
Hannah's commission from phone sales is calculated by multiplying the total dollar amount of phone sales by her commission rate, which is 7%. The same method is used for computing her commission from computer sales.
For phone sales: $1000 × 0.07 = $70
For computer sales: $1700 × 0.07 = $119
Now, we add the two amounts to find the total commission Hannah earns in a day.
Total commission = commission from phones + commission from computers
Total commission = $70 + $119 = $189
Therefore, Hannah will earn $189 in commission on that day.