If you are currently using a gas or electric pool heater, the savings from solar pool heating system will pay for itself in 2-3 years of installation. For example, the average system costs about $5,500 and it typically costs about $2,000 a year to heat a pool with gas.
In the United States, enrollment in AP Statistics classes has increased at a higher rate than in any other AP class. Students may receive college credit or upper-level college course placement upon the successful completion of a three-hour exam ordinarily administered in May.
AP (Advance Placement) classes are classes that are for a higher level in a way than honors. It is a class that gives you a prep for college courses. If you even pass the AP t â¦ est you receive college credits.4 people found this useful. The classes you take in your junior and senior years of high school pave the trail to youâ¦. 2  The Advanced Placement Curriculum Scores Higher Advanced Placement (AP) classes are designed to present a rigorous curriculum to the school's most academically advanced students.