First you divide 5/3 to determine how many total 1.5 teaspoons of vanilla are needed. So then you will do (5/3)(3/2) which gets you 5/2 teaspoons of vanilla or 2.5 teaspoons.
Whole numbers: all non negative integers are called whole numbers. The point to be remembered is that all natural numbers are whole numbers but all whole numbers are not natural numbers. For ease you can remember that 0 is a whole number but not a natural number.
There's literally unlimited answers but here are some simple ones.
5 x 11 = 55
55 = 55
55 > 54
1 < 55
3 x 2 < 55
Vertex: (0,1)
Focus: (-2,-1)
Directrix: x=2
Axis of symmetry: Y= -1
The only one I’m not too sure of is the P value but I hope that helps! Have a good day :)