Hummingbird beat their wings many times per second which equation relates the number of beats per second (a) to the number of wing per minute (b) A. b=a+60
B. b=60/a
C. b=60a
D=a/60

step-by-step explanation:

answer: the answer is e

step-by-step explanation:

the total estimated nappy use.=10,500,000

step-by-step explanation:

given that on an average the average baby uses 3528 napkins.

in a particular year 2014, the number of births were 299697 in new south wales.

rounding off the number of births to the nearest hundred thousand we have

no of birtsh = 300000

also rounding off the average usage to nearst thousand we get

average use of a baby = 3500

hence total number of nappy estimated to be used = 3500x300000

= 10,500,000

answer is 10,500,000 nappies