eight and nine 9 + 8 = 17 9 - 8 = 1
it is really easy
72 9+9+9+9+9+9+9+9=72 or 8+8+8+8+8+8+8+8+8=72
well the formula for a triangle is half x base x height so if you multiply 14 by 9 you get 126 and half it you get 63 so the area = 63
72/8 = 9 72/9 = 8 72 = 8 * 9 72 = 9 * 8 8 * 9 = 72 8 = 72/9 9 * 8 = 72 9 = 72/8
17
17/9 = 1 and 8/9 + 8 = 9 and 8/9
Scandium is a transition element, so it has properties quite different. so instead of having 2-8-8-3 it sends 1 electron to the inner L shell and becomes 2-8-9-2
8:9 or 8 to 9
9/8 = 1.125 9/8 = 1.125 9/8 = 1.125 9/8 = 1.125
Don't you just times them together: 9x8=72 or 9+9+9+9+9+9+9+9=72 1..2..3..4...5..6..7...8 or 8+8+8+8+8+8+8+8+8=72 1..2..3..4...5..6...7..8..9 72squares
8/9 is the simplest form