NznzjzjzbzbzbjzkzjsavsvbsjsjJJsbsvsvzzbnzjzjjjbsjksiskwjsbsbvszbziidksbebsbeksiqoqlqpqppqisjdndnnlcosjwbsbsqoqpoeiesudbnxnznlanckvkvlppqwkjdnxkxpspqijrfjncxnkdls
2.45kg
First you calculate the price per kg as follows:
If it’s $20 for 12.25 kg, the price per kg is $20/12.25=$1.63 per kg
If you have $4, you can figure out what weight you can get by taking $4/the price per kg, so $4/$1.63, which is 2.45 kg.
71290 because the ones are 0 and zero is lower than 5
so it wouldn't add anything to the tens
the rule is if the number is more than 5+ it will add 1 to the next number
for example if we have this number 189 and we want to round it to the nearest 10 ..
we will see the ones place is it more than 5+ ? YEAH bcz its 9 ...
so 9 will add one to the tense and the answer will be 190 :)
hope you got the point .
The answer is called a linear equation :))