Work with a partner. Each grid square represents 1 square centimeter. Use estimation to match each triangle with its area. Then check your work by finding the exact area of each triangle.

518,400

step-by-step explanation:

the area is multiplying all the given measurements together.

40 * 18 * 30 * 24 = 518,400

-7/8

step-by-step explanation:

instead of subtracting you add the -6/8 and -1/8

according to egenuity the answer is

step-by-step explanation:

d. 344.22

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