Question 21: 24 minutes
[tex]\frac{3}{\frac{3}{2} } = \frac{x}{12}[/tex]
x = [tex](\frac{3}{\frac{3}{2} })(12)[/tex]
x = 24
Question 22: 20 centimeters
x = one side of the square
x² = 25
x = 5
4x = perimeter
4(5) = perimeter
20 = perimeter
Question 23: 17 sides
Hexagon = 6 sides
Octagon = 8 sides
Triangle = 3 sides
Total amount of sides = 6 + 8 + 3
Total amount of sides = 17
