K= 1/12
perimeter of doll house= 36 inches
:. length of doll house= 36inches / 4
= 9 inches
length of actual= length of doll house x k(inverse)
:. actual lenght= 9 inches x 12/1
= 108 inches

plug that in your calculator, yes, your calculator has an [ e ], button for the Euler's constant.
Answer: B
Step-by-step explanation:
Division of components are consistent - the same
Answer: 3:8
Explanation: To get this you have to divide each number by the two numbers' GCF (Greatest Common Factor) and in this case the GCF is 10, so you divide both numbers by 10 and get 3 and 8.
Not sure how to do it in this form but in slope intercept form for example if the slope was -4/3 the perpendicular would be 3/4 it’s the negative reciprocal of the answer