9r=3r+6
Subtract 3r from both sides
6r=6
Divide both sides by 6
r=1
The common difference, d, is 5 and the starting value, a, is 2.
Filling this in the form of

<span>you get
</span>
Answer:
k = 5
Step-by-step explanation:
Since the quantities are in direct proportion then the equation relating them is
y = kx ← k is the constant of proportion
The y- axis is number of cups and x- axis is pounds of sugar
To find k use any of the 5 points highlighted on the graph
Using (8, 40 ), then
40 = 8k ( divide both sides by 8 )
5 = k
The answer is 9.63 x 10^12