Answer:
Explanation:
you can solve with a simple proportion
4 : 120 = x : 180
x = 4 x 180 : 120
x = 6
Answer: 6 fertilizer
Take 120 divided by 4 = 30 soil per fertilizer
We know that 30 times 6 = 180
So we take 1 time 6 = 6 Fertilizer
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