How many nickles equal 9.8 ounces

If 1 nickel equals 5 grams then how many nickles equals 9.8 ounces?
1 nickels = 5 grams.
How much money in nickels equals 9.8 ounces?
What is the abbreviation for ounces?

The abbreviation for ounces is oz.
1 ounce = 28.3495231 grams
9.8 oz = 277.82g
so 227.82/5 = 55.56 = 56 to nearest nickle
56 nickles = 56*5= 280 cents = $2.80

The only problem with just doing the problem mathematically is that not every single nickel weighs exactly 5 grams. I made a number of random experiments with a variety of different nickels and found that in some cases it took only 53 nickels to equal the 9.8 ounces, while one time it took 56 nickels to obtain the same weight. Therefore, the actual number, depending on the age and quality of the nickel, can differ somewhat. I don't know if this really helps, but when dealing with items that are subject to wear and degradation there is the possibility of a flawed outcome.

1 gram = 0.0352739619 ounce

let us express 5grams to ounce
5grams =0.176369809 ounce

let x be the number of nickel

0.176369809x = 9.8

x = 55.56 or 56 nickels
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(0.05cents)(56) = $2.80

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ounce is abbreviated as oz.