Answer:
The constant of proportionality is the ratio between two directly proportional quantities. In our tomato example, that ratio is $3.00/2, which equals $1.50. Two quantities are directly proportional when they increase and decrease at the same rate.
Step-by-step explanation:
Answer: there's the slope!!!
Step-by-step explanation:I saw the slope
x = 15
If you have any questions about the way I solved it, don't hesitate to ask