Five less than three times a number is 10 algebraic equation and solution

3x-5=10 Given
3x=10+5 addition property of equality: add 5 to both sides
3x=15 Simplify
x=5 Division property of equality: divide both sides by 3

You have 2 sides that are 2 cms and you have 6 sides that are 1/2 cm and you have 4 sides that are 1 cm. the smallest sides are 1/2 the medium sized sides are 1 and the smallest are 1/2. so to find the perimeter you have to add them all up together so your answer will be 11 cm's

The scale factor of what ?