Question

After vigorous activity, your heart rate changes at a rate of -12 beats per minute? How much would your heart rate decline within a 7-minute period?

Answer 1

Assuming it is constantly declining at that rate, it would be `84` beats slower.

Explanation:

It declines `12` beats per minute.

`7` minutes have passed so your heart rate goes down `12` beats for each of those minutes.

So: `12*7=84`