(! ) hummingbirds beat their wings many times per second. which equation relates the number of wing beats per second (a) to the number of wing beats per minute (b)?

a. b=60/a
b. b=a/60
c. b=60a
d. b=a+60

distance covered by pamela in 9 l of fuel = 99km

let us apply unitary method here.

distance covered by pamela in 1 l of fuel =99/9 =11 km

now let us find distance covered by pamela if she has 12 l of fuel.

distance covered in 12 l = distance covered in 1 l of fuel * 12

we know that distance covered by here in 1 l is 11 km.

so distance covered in 12 l of fuel = 11*12 = 132 km.

answer: idk

step-by-step explanation: