I NEED HELP I don’t get it plz tell me the answer

C) 2 hours

Step-by-step explanation:

watch the picture.

h (2)/3 + h (2)/6 = 1

2/3 + 1/3 = 1

You simply substituting the H with 2 hence making the answer 2hrs.

the surface area is 124cm²

step-by-step explanation:

length: 4cm

width: 9cm

height:   2cm

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