Question

a persons resting heart rate typically with age.

Explanation:

Resting heart rate changes as the heart matures; in infants it is very high, and it gradually decreases through childhood, then stabilizes and may slightly rise in advanced old age, but the overall typical trend from early life onward is a decrease that levels off. The most accurate general descriptor is that it decreases with age (from infancy to adulthood, the primary reference for typical developmental trends).

Answer:

decreases