Answer:
Step-by-step explanation:
The language art teacher wants to know the opinion of the ENTIRE school, so it would be fair if the teacher takes a sample from the ENTIRE school population. She can use the stratified sampling method where she can take a proportionate sample from each grade.
Correct answer: All students in each grade
The formula for this is: (sale price) / (1 - percentage)
Percentage have to be in decimal form, so divide percentage by 100 to get the decimal form.
220/(1-.20) = $275
The original price was $275.
Answer:3
Step-by-step explanation:
Hope it helps (｡・//ε//・｡)
Answer:
y-intercept: 0
slope:120/7
Step-by-step explanation:
