A teacher recorded the resting heart rate (in beats per minute) for every student in four classes. Boys data is shown in the left matrix and girls data in the right matrix. What percent of all the girls had a heart rate over 80 beats per minute? A) 11% B) 17% C) 23% D) 33%

your answer is a

step-by-step explanation:

4*4*4*4=256

f(x) is going down by 4

step-by-step explanation:

(its either that or its going left by 4)

b. 6

step-by-step explanation:

we are given the table representing an exponential function.

we can see from the table that, as x is increasing, the value of y is increasing in the power of 6.

i.e. the following relation is obtained,

x = 1, y = 6

x = 2, y = 36 =

x = 3, y = 216 =

x = 4, y = 1296 =

x = 5, y = 7776 =

so, the geometric series obtained is .

thus, the common ratio is given by = = 6.

hence, the common ratio is 6.