The factors for the number 81 is 1,3,9,27
The percentage change in perimeter is 100%.
The percentage change in area is 300%
<h3>How to find perimeter and area?</h3>
The perimeter of the sandbox = 2l + 2w
where
Therefore,
perimeter = 2(10) + 2(6)
perimeter = 20 + 12 = 32 ft
The area of the sand box = lw
area = 10 × 6 = 60 ft²
If the length and width are doubled,
length = 2(10) = 20 ft
width = 2(6) = 12 ft
hence,
perimeter = 2(20) + 2(12) = 40 + 24 = 64 ft
area = 12 × 20 = 240 ft²
Therefore,
percentage change in perimeter = 64 - 32 / 32 × 100 = 100%
percentage change in area = 240 - 60 / 60 × 100 = 18000 / 60 = 300%
learn more on perimeter and area here: brainly.com/question/15322533
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Answer:
Step-by-step explanation:
Given:
The system of equations given are:
If an equation is multiplied by a number throughout, then the equation remains the same by multiplication property of equality. The multiplication property of equality says that if both sides of the equation is multiplied by the same number, then the new equation is equivalent to the previous equation.
For example: If 
is multiplied by 2 on both sides, then the new equation will be 
which is equivalent to .
So, from among all the choices given, the first choice represents the above mentioned property. The equation 
is multiplied by 3 on both sides. So, the equation 
is equivalent to .
The second equation 
has not been changed. So, the equivalent system of equations to the given system is:
The <em><u>correct answers</u></em> are:
60°, 120°, and 180°.
Explanation:
A hexagon has six angles. A full circle is 360°; since there are 6 angles in the hexagon, it will rotate onto itself every 360/6 = 60°. This means that the hexagon will rotate onto itself at angles that are multiples of 60°; this means that 120° and 180° will also do this.
