I imagine that not everyone that visited Becky’s Store spent a lot of time and money there. If she surveys only those that did, this is not a representative sample because she is leaving out other customers. She would have no one in her sample that represents customers who spent a lot of time but no money, or little time and no money or even little time and a lot of money. These are just some examples but clearly her sample is biased.
Y=x-5
inverse means swapping x and y
x=y-5
y=x+5
Therefore inverse function is y=x+5
So there are two ways I see this problem.
First as trick question kinda, due to the fact that it is a word problem and the way it is setup would make me think the answer is 0,0. You don't pay anything for 0 crates.
The other way is by graphing it.
We can take the points and just plug it into

First lets solve for for

putting in point one and two on the table here gives us 10
The problem here is we don't know the Y intercept which makes finding the equation a tad harder, we are going to have to find to find that as well. It is pretty simple though we can just plug in a random point to make it a solvable problem

. We can then work this out to b = 5
From there we have found the equation with it being

. Putting that into our graph gives us a Y intercept of 5 and a X intercept of -0.5.
Sorry if I went a bit far there, hope you can figure the problem with one of those.
Answer: Pam's total salary is $41666.666
Step-by-step explanation:
Assume her total earning or salary per year = y
Personal expenses spent yearly = $7500
Personal expenses yearly ($7500) = 18% of y
100%y =
18% of y = 7500
(18/100)y = $7500
100% y = Total salary
0.18y = $7500 - - - - - - - (1)
1y = Total salary
(Total salary * 0.18y) = (7500 * y)
Total salary = 7500y / 0.18y
Total salary = 7500/0.18
Total salary = $41666.666