Answer:
No, the relationship between price and volume (in grams) of the sports-drink mix cannot be described by a constant rate. A constant rate means that the ratio of price to volume is the same for all sizes of the product. To check this, we can calculate the price per gram for each size and compare them.
For the 1 kg size, the price per gram is:
$22.75 / 1000 g = $0.02275 per gram
For the 750 g size, the price per gram is:
$12.50 / 750 g = $0.01667 per gram
For the 500 g size, the price per gram is:
$9.00 / 500 g = $0.01800 per gram
We can see that these values are not equal, so the price per gram is not constant. Therefore, the relationship between price and volume is not linear and cannot be described by a constant rate.
Explanation: