Answer:
The third one
Step-by-step explanation:
consider the following image

Answer:
baby momma aint shii she wont lemme see mai son
Step-by-step explanation:
Cross multiplication
or multiplying by a number which goes in both rates
Astronomers deal with objects in space, so it's most likely they would use geometry to determine how far they are, how big they are, etc.
Have a nice day! :)
S = Speed
D = Distance
T = Time
S = D/T
S = 50m/1/2
50 divided by 1/2 = 25
25 = 50/1/2
S = 25 m/min.