Final answer:
After 6 weeks, the stock price of stock ddd would be $30 per share.
Step-by-step explanation:
The subject of this question is Mathematics. The question involves understanding the rate of increase in the stock price of stock ddd and analyzing the changes in the price over time.
To calculate the stock price after a certain number of weeks, we can use the formula:
Stock Price = Initial Price + (Rate of Increase x Number of Weeks)
In this case, the initial price is $18 and the rate of increase is $2 per week.
So, if we want to calculate the stock price after 6 weeks:
Stock Price = $18 + ($2 x 6)
= $18 + $12
= $30
Therefore, after 6 weeks, the stock price of stock ddd would be $30 per share.