Answer: b
Step-by-step explanation:
Answer: This study uses a control group, this study uses repeated measures design, and this study uses random sampling
Step-by-step explanation:
Answer:
4/6
Step-by-step explanation:
Answer:
The initial cost of the cell phone was $364
Step-by-step explanation:
Since there was a 30% markup, 70% of the new cost is the initial cost. Multiply 520 by 0.7 on a calculator and you get 364
