When you have 3 for every 7, you divide
450 divided by 3
150
The answer is 1/500 because it will always be the probability of the event occurring/total events
If a shape is a square, this mean that each side has the same length. This means that each side of the square has a length of 17cm. Perimeter is the length of the outer boundary of a shape or the summation (addition) of all the sides. This means that the perimeter of this square is 17+17+17+17 or 17×4 which is equal to 68cm.
I hope this helps!
