Is 83.4% good in 10th grade ?

I'm so suicidal right now :(​

Which of the following is a downside to using a professional naming firm? question options: you'll no longer have control over your company's name. most aren't very good at coming up with effective names and logos. you will need to be cautious about the firm stealing your business idea. most are fairly expensive, charging from $5,000 to $80,000 to develop a name.

Which control would most likely achieve the greatest reduction of noise pollution? limiting airplane traffic insulating buildings and homes reducing road and highway traffic using headphones to listen to music building noise barriers beside highways

Ahigh school teacher wants to study the seating habits of students in the cafeteria to determine if students sit in the same seats or change seats from day to day. she sits in the cafeteria for several days, and without interacting with the students, records where they sit each day. what is a potential benefit of this type of research? there is an independent variable. there is a dependent variable. the researcher can gain personal information about an individual. the participants act normally. the information can be gathered over a period of several years.