What is the solution to the equation 1.25+r=4?
a. r=2.75
b. r=3.75
c. r=5.25
d. r=5.75

a. r=2.75

Step-by-step explanation:

1.25+r=4

-1.25    -1.25

r=2.75

check:

1.25+2.75=4

investment b is an ordinary annuity with $3,909.64 in the account after one year.

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