It is d. you can solve the question with Pythagorean
Answer:
<h3>Part A</h3>
- <em>The graph is attached</em>
<h3>Part B</h3>
For zero number the cost is zero and the rate of change is 25.
- 0 - 0, 1 - 25, 2 - 50, 3 - 75, 4 - 100
This is the indication of the proportional relationship
<h3>Part C</h3>
- It is a constant change as the difference is same for each step - 25
- The ordered pair (1, 25) shows the unit rate is $25 per pair of shoes
<h3>Part D</h3>
- Constant of proportionality is 25
<h3>Part E</h3>
<u>The equation is:</u>
where y - cost, x - number of pairs of shoes, 25 - constant of proportionality
Answer: 30:5 & 6:1
Step-by-step explanation:
30/5 = 6
5/5 = 1
if its h-20 and h=60 then the equation is 60-20 which equals to 40