c = cost
h = # of half-dozens ordered
c = $8.50h + $1 is the correct answer.
It is the last answer. because the shaded part is above the line, it is greater than. the slope is 1/3. that leaves only one more equation remaining, so the answer is the last one.<span />
Please be a little more specific on what you want to ask.
I can be of some help.
Let the amount B pays be £x
So,
A pays £125
B pays £x
They pay in the ration 3:2
Therefore,
125/x = 3/2
Cross multiplying we get,
125 x 2 = 3x
3x = 250
x = £63.33
Explanatory research is research conducted in order to explain any behaviour
