Please help I don’t understand this. Cheryl writes 7 fewer posts than Kevin on a social media site.
Answer the questions to write an algebraic expression. Then evaluate the expression for the
given value.
1.) Choose a variable to represent the number of posts Kevin writes. Explain why you chose this
variable.
Write your answer in the space below.
2.) Which operation (addition, subtraction, multiplication, or division) applies to this situation?
Justify your choice.
Write your answer in the space below.
3.) Use your variable and the operation you identified to write an expression for the number of
posts Cheryl wrote.
Write your answer in the space below.
4.) If Kevin wrote 21 posts, how many did Cheryl write?
Write your answer in the space below.

1) Choose K for Kevin. I chose this variable because it starts with the first letter of his name and is easy to remember 2) Subtraction applies to this because 7 less than Kevin would be Cheryl. 3) C = k -7 d) 14 posts

Step-by-step explanation:

d) Plug in the equation; 21- 7 = C

answer 1 : option "c"

answer 2 : option "d"

answer 3 : option "b"

answer 4 : option "d"

answer 5 : option "b"

answer 6 : option "a"

answer 7 : option "c"

answer 8 : option "d"

answer 9 : option "c"

answer 10 : option "d"

answer 11 : option "c"

answer 12 option "b"

answer 13 option "c"

answer 14 option "c"

answer 15 option "d"

answer 16 option "a"

answer 17 option "b"

answer 18 option "c"

answer 19 option "a"

answer 20 option "a"

answer 21 option "c"

d

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