which is similar to n:1 where 
<u>Step-by-step explanation:</u>
Here we have to Express in the form n:1 give n as a decimal 21:12 . Let's find out:
Given ratio as 21:12 . Let's convert it into n:1 , where n is decimal
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{ dividing denominator & numerator by 4 }
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which is similar to n:1 where 
The answer is 48--- 64% of 75=48
No that would be 3825 but the answer it gave u is 129
Answer:
15 weeks
$270
Step-by-step explanation:
60+14x=120+10x
4x=60
x=15 weeks
amount= 60+14*15= $270