which two ratios form a proportion?
a) 1 : 2 and 4 : 2
b) 1 : 2 and 6 : 3
c) 2 : 1 and 2 : 4
d) 2 : 1 and 6 : 3

The answer is D)

Step-by-step explanation:

To determine whether the two ratios form a proportion, write the ratios as fractions and compare using a common denominator.

2 /1  =  6 /3  →  2 · 3 /1 · 3  =  6 /3  →  6 /3  =  6 /3

where did you get them? if you picked from the grass, is is probably poisonous.

step-by-step explanation:

c

step-by-step explanation: