What grade is in if you 14?

What do you call the line segment passes through the circumference of a circle? Do contacts make things appear larger in size? What do you call words that can be spelled forward and backwards? What is the length of an equilateral triangle if the perimeter is 12x plus 21? What is 1 and 1 seventh divided by 2 and 2 thirds? How many digits does a serial number have? Where can you find a comparison chart between centipoises and centistokes and where can you find a viscosity comparison chart for materials? Which term describes a line segment that connects a vertex of a triangle to a point on the line containing the opposite side so that the segment is perpendicular to that line? What is the percent decrease of 30000 and 25000? What are the first 100 Roman Numerals? How many times does the word prophet appear in the New Testament? What is the cube route of 8? How much laminated flooring cost in 12 x12 room? What prime numbers are in 108? In a standard normal distribution about percent of the scores fall above a z score of 300? What is a set of numbers made up of rational numbers and irrational numbers? How many times does 6 go in 19? How many ways can a student work 7 out of 10 questions on an exam? Is one and one fifths greater than eight fifths? What is 5 divided by 895?