Razi’s Party Favor Bag Progress

A 2-column table with 5 rows. Column 1 is labeled Time (minutes), x with entries 0, 1, 2, 3, 4. Column 2 is labeled Bags Remaining, y with entries 52, 48, 44, 40, 36.

Seung and Razi are both filling party favor bags for their birthdays at a constant rate. Razi’s progress is shown in the table.

After 3 minutes Seung had 34 bags remaining to be filled, and after 4 minutes he had 31 bags remaining.

Compare Seung and Razi’s bag-filling progress.

Each minute Seung fills than Razi.

As part of an annual fundraiser to raise money for diabetes research, diane joined a bikeathon. the track she biked on was 1,920 yards long. diane biked 38.5 laps. her sponsors agreed to donate an amount of money for each mile she biked. how many miles did she bike? first fill in the blanks on the left side using the ratios shown. then write your answer. given ratios: 5280ft / 1 mi , 1 mi /5280 ft , 1,920 yards / 1 lap , 1 lap / 1,920 yards , 3 ft / 1 yard , 1 yard / 3 ft. blanks: 38.5 laps / 1 yard x (blank) x (blank) x (blank) = (blank) miles i'm really confused on how to do this, and the explanations aren't exactly . if you could walk me through how to do this, it would be greatly appreciated.

The zoo collects $9.60 for every 24 tickets sold. how much will be collected for 400 tickets?

Which situation is an example of an observational study?