Answer:
the amount that need to be paid by her is $633.60
Step-by-step explanation:
The computation of the amount that need to be paid by her is shown below:
= Purchase value of merchandise - purchase value fo merchandise × discount rate
= $720 - $720 × 12%
= $720 - $86.4
= $633.60
hence, the amount that need to be paid by her is $633.60
For the first part
5 an hour plus 50
Can you make an equation out of it
Answer:
(0.5446, 0.6554)
Step-by-step explanation:
As the sample is sufficiently large, the formula is used to estimate the proportion shown in the attached image.
Where:
P: sample proportion = 0.6
n: Sample size = 300
: Confidence level = 0.95
α: Significance = 0.05
*
* Obtained from the normal standard table.
When introducing these values in the formula shown in the image we obtain:


Finally, the confidence interval is:
(0.5446, 0.6554)
Yes your answer is correct