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.
3. A * gasp * 3 on an AP exam wonât crush your dreams of Harvard/Yale/Princeton/Fill-in-the-blank-school-here. AP tests are scored on a scale of 0-5, with 5 being the highest score you could get. Most schools will give credit for scores of 4 or 5, and some even accept the occasional 3.