a. you need to find the intersection of the formulas for domestic supply and demand. That will be the equilibrium price and quantity in the absence of imports (presumably rounding down to the nearest whole Q). You'll find that the eq. price is indeed > 1019 (relevant in b).
I think Turkmenistan should buy locally produced toothbrushes to help their local industry and lower their carbon footprint. I'm pretty sure my toothbrush is made in China though. Sorry, I failed economics :D
Get a sheet of paper and draw the graphs. It's easier to grasp if you visualise it. Or plot them on your calculator if you have one of those fancy one that can do that.
Then do the math and use the graphs as a reference to make sure you're doing it right.
It's not that complicated so you should it do yourself, you're not going to learn it otherwise. Lol I sound like one of my high school teachers now.
