If a heartbeats 473 times in 5.5 hours, how many times would it beat in 3 minutes?

4.3

Step-by-step explanation:

5.5*60 = 330

473/330 = 1.43333333333

1.43333333333 × 3 - 4.3

for this pair of functions g(x)=x-2 and f(x)=|x| is (g o f)(a)= |a| -2

step-by-step explanation:

g(x)=x-2

f(x)=|x|

(g o f)(a)=?

(g o f)(x)=g(f(x))

(g o f)(x)=g(|x|)

(g o f)(x)=|x|-2

(g o f)(a)=|a|-2