9. For a store contest, 5 out of every 65 people who visit the store will receive a free DVD. If 455 people visit the store, how many free DVDs will be given away? Set up equivalent ratios. Use a domino! +​

If, while training for a marathon, you ran 60 miles in 2/3 months, how many miles did you run each month? (assume you ran the same amount each month) write your answer as a whole number, proper fraction, or mixed number in simplest form. you ran __ miles each month.

The number of calories you burn depends on your weight. a 110-pound person burns 163 calories during 30 minutes of tennis. find the number of calories that a 190-pound person would burn during the same activity, assuming they burn calories at the same rate.

Compute the standard deviation of the following set of data to the nearest whole number. 10, 10, 15, 20, 25