Answer:
Step-by-step explanation: 84500 - 1700 = 82800
82800 ÷ 12 = 6900
Erin makes $6900 a month
Answer:

$570
Step-by-step explanation:
Given that:
For each hour of tutoring, Lena earns 30 dollars.
E is her earning and
H is the number of hours for which she tutors.
To find:
Equation relating E to H.
Solution:
Let Lena tutors for 1 hour, then the earning = 30 dollars
Let Lena tutors for 2 hours, then the earning = 30+30 OR 2
30 = 60 dollars
Let Lena tutors for 3 hours, then the earning = 30+30 +30 OR 3
30 = 90 dollars
If Lena tutors for H number of hours, then the earning, E = 30 + 30 + .... + 30 (H times) i.e.

So, the equation that relates E to H is given as:

Now, it is given that she tutors for 19 hours.
Let us put H = 19 hours in the above equation:

Therefore, the earning for 19 hours of tutoring is <em>570 Dollars.</em>
Answer: 666.66
Step-by-step explanation: 30% times 666.66 = 200.00001 because it is a repeating decimal.
Answer:
Step-by-step explanation:
i would
Substitute the given value into the function and evaluate.
Answer:
23.52 cm
Step-by-step explanation: