The best example are roads.
USA economy is a mixed-market economy. It blends elements from market economy with elements from planned economies.
Private ownership is prioritized ( free market economy) but the government <em>has control over some public services</em> such as healthcare (to an extend), physical infrastructure<em> (the road system</em>), education, national defense, the postal system and some public lands.
The idea behind public ownership of these services is that they are better performed by public than private enterprise.
The roads in the USA and their infrastructure are<em> funded by taxes</em> (especially the gas one), tolls and user fees.
It’s either Indian removal act or nullification crisis. I would say nullification crisis
Answer;
-Prevent Propeller Strikes
Explanation;
Propeller guards, or prop guards as they are commonly called, are devices that mount on the lower unit of an outboard motor.These propeller guards surround the propeller and protect it from damage when encountering a rock or other underwater obstacle.
They are manufactured from mild steel rod or heavy plastic, the guards allow water to flow freely through them, so the propeller is able to get a good bite on the water. Grass and weeds are also kept clear of the propeller, and damage to propellers, bearings and seals is greatly reduced through the use of guards.
The use of bartering to trade goods, instead of money
