7^2 x (9-4) + 10/2-1 the choices are 225,249,735 and 441

249

Step-by-step explanation:

Remember:

P arenthesess

E xponent

M ultiplictaion

D ivision

A ddition

S ubtraction

So first do the parenthesess:

7^2 x 5 + 10/2-1

Then exponent:

49 x 5 + 10/2-1

Then multiplication:

245 + 10/2-1

Then divsion (Before subraction),

245 + 4

Which equals

249

Have a good day. :)

Hope this helps!

(brainliest would be appreciated)

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