Well, honey, if you take 3 away from 18, you're left with 15. It's basic math, darling. Just subtract and move on with your fabulous self.
15
what number has 9 hundreds, 2 fewer tens than hundreds, and 2 fewer ones than hundreds
952
521
7252
15
It is 7414
7641
3, 8, 13, 18, 23, 28, 33, and 38 are all solutions.
4117
what number has 9 hundreds, 2 fewer tens than hundreds, and 2 fewer ones than hundreds
952
A shape that has fewer than 8 faces and fewer than 10 edges is a triangular prism. A triangular prism has 5 faces (2 triangular faces and 3 rectangular faces) and 9 edges. It meets the criteria of having fewer than 8 faces and fewer than 10 edges.
521
Exactly 3. One more than 2, one fewer than 4.
The element that fits these criteria is sulfur. Sulfur has 6 valence electrons (more than oxygen with 6, fewer than neon with 8), 16 protons (more than sodium with 11, fewer than argon with 18).
A pentagon.