Answer:
6 seeds will grow
Step-by-step explanation:
An easy way to simplify is like this
9/30 -> Find a common factor (3)
9 sprout per 30 planted
Divide both sides by GCF(3)
3/10
3 sprout per 10 planted
x/20 = 3/10
How do you change that 10 into a 20?
Multiply by 2 = 6/20
So, 6 seeds sprout per 20 planted