Which of the following scale factors represents an enlargement of the original dimension? A- 1/2
B- 1/12
C- 3/4
D- 16/1

D - 16/1

Since the value of the rest is less than one, that means that it's a reduction but since D is more than one, it means that it's an enlargement.

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional

she will travel a distance in the range of 3 - 11 miles