Draw a small circle on a white sheet of paper. About 6 cm (2 1/2 inches) to the right of this circle, draw a plus-sign, about 3 mm (1/4 inch) in size. Close your left eye and put your nose on the paper so that your right eye is directly above the circle. Slowly move your head up until you cannot see the plus-sign. Measure and record the distance from your eye to the paper. Move your head farther above the paper until the plus-sign reappears. Measure and record this distance. Why does the plus-sign disappear

answer: your gay

step-by-step explanation:

you dont know math

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

a

step-by-step explanation:

c

step-by-step explanation: