In great east japan a tsunami happened
The rule is times 3.
2*3=6
6*3=18
and so on
Answer:
it is b
Step-by-step explanation:
For the answer to the question above,
since the only variable used to determine earnings is the number of doors knocked, you can eliminate options 1 and 3 as they are based on the number of books sold, which is not a part of the equation.
That leaves the only options being the increase of $20 or $50 for each door knocked. As the x value we multiply by 20, the correct answer is #2, her earnings will increase by $20 for each door knocked.
You can also check this by plugging in values:
Assume 10 doors are knocked:
E(10) = 20(10)-50 = 200-50 = 150
Assume 11 doors (1 more door) is knocked:
E(11) = 20(11)-50 = 220-50 = 170
<span>The increase from 1 door is $20. the answer is B</span>
Answer:
is the answer.
Step-by-step explanation:
According to the power rule, we have:
We use the power rule to solve the problem.
Therefore, which is the required answer.