Your graph is correct.
You start with point (0, 40). On day 0, you have 40 T-shirts.
Each day that passes, you have 5 shirts fewer. (1, 35) means on day 1, you have 35 shirts left. Each day that passes, there are 5 fewer shirts. On the 8th day, there are no shirts left. That is point (8, 0).
Good job!
The probability that the number selected is the square of a natural number will be
.
<h3 /><h3>What is probability?</h3>
Probability means possibility. It deals with the occurrence of a random event. The value of probability can only be from 0 to 1.
Its basic meaning is something is likely to happen. It is the ratio of the favorable event to the total number of events.
P is the probability
F(E) is the favorable event
T(E)is the total event
The probability is found as;

Hence the probability that the number selected is the square of a natural number will be
.
To learn more about the probability link is given below.
brainly.com/question/795909
Per 1 yard the cost would be $0.38. Not sure what unit you need it in, but thats the answer in yards.
12/35 is simplified, as you cannot divide it into smaller numbers by a common factor.
I hope this helps!