CP_Test_Score_Conversions

CP Test scores are on a 30-point scale, but ARE NOT designed as a percentage-based test.
This system allows me to make more distinctions between work that is good and work that is excellent. Without asking lots of questions on the test, I can reward honest effort AND show room for improvement, without worrying that the way I show these differences will destroy a student's grade!
 * 30 ||  || A+ ||   || 5.0 ||
 * 29 ||  || A+ ||   || 4.8 ||
 * 28 ||  || A+ ||   || 4.7 ||
 * 27 ||  || A ||   || 4.5 ||
 * 26 ||  || A ||   || 4.3 ||
 * 25 ||  || A ||   || 4.2 ||
 * 24 ||  || A ||   || 4.0 ||
 * 23 ||  || A- ||   || 3.8 ||
 * 22 ||  || A- ||   || 3.7 ||
 * 21 ||  || B+ ||   || 3.4 ||
 * 20 ||  || B+ ||   || 3.3 ||
 * 19 ||  || B ||   || 3.2 ||
 * 18 ||  || B ||   || 3.0 ||
 * 17 ||  || B ||   || 2.8 ||
 * 16 ||  || B- ||   || 2.6 ||
 * 15 ||  || C+ ||   || 2.5 ||
 * 14 ||  || C+ ||   || 2.3 ||
 * 13 ||  || C ||   || 2.1 ||
 * 12 ||  || C ||   || 2.0 ||
 * 11 ||  || C- ||   || 1.8 ||
 * 10 ||  || C- ||   || 1.6 ||
 * 6 ||  || D ||   || 1 ||
 * 0 ||  || F ||   || 0 ||