She earns $400 for 40 hours, so she earns $10 each hour.
6 x 10 = 60
She earns $60 for 6 hours of work.
Answer:
m>−5
Step-by-step explanation:
Answer:
Principle for account B is greater.
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Step-by-step explanation:
First of all, let us have a look at the formula for Simple Interest:

Where
is the principle amount
is the Rate of interest per annum
is the time in years.
Time = 21 months = 

Let the Principles be
.
Using the formula for Simple Interest, we get:


Therefore, <em>principle for account B is greater</em>.
Answer:
8 units by 10 units
Step-by-step explanation:

You can add the numbers of those people to come up with the total.