When a grizzly bear hibernates, its heart rate drops to 101010 beats per minute, which is 20\%20%20, percent of its normal value. What is a grizzly bear's normal heart rate when not hibernating?

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6

if a = 1,   and b = 2, then the answer is 47.99999999. if you round that to the nearest whole number, the answer is 48.

the formula of a slope:

we have the points (-2, 7) and (2, 3). substitute: