Answer:
180
Step-by-step explanation:
If Joanna works 8 hours and sells an appliance for $900 her total earning is $180
She earn $18 per hour plus a 4% commission on each appliances she sale.
If she works 8 hours and sell an appliances for $900 her total earning can be calculated as follows:
Therefore,
144 + 4 / 100 × 900
144 + 36 =$ 180
Therefore, Joanna earned $180 in total.
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28 and 6
List the factors (excluding itself):
6: 1, 2, 3,
28: 1, 2, 4, 7, 14
Add them up!
1+2+3=6
1+2+4+7+14=28
if they add up to the original number then the number is perfect.
960
The square root of pi is 1.77245385091.