4 oz
yes
15 US fl oz = 0.444L
15 Lbs is 1200 quarters (or $300). 1 quarter weighs .20 oz (assuming these are all new quarters) If there are 16 oz in 1 pound, then there are 240 oz in 15 pounds. 240 oz divided by .20 oz is 1200. 1200 quarters is $300.
3 x 3/4 oz = 2.25 oz
15 oz weighs 15 oz.... Ounces are a measurement of weight, so.....
1 oz = 28.34 grams 1 gram = 0.03 oz
15 a half eighth 30 an eighth 50 a quarter 100 a half 200 an Oz
15 ounces = 425.24 grams. Your formula: 15 oz* 28.34952313 g 1 oz = 425.2428469 g
According to Uncle Sam, a quarter is 0.0591745397 fluid ounces. Ignoring both geometry (finding the optimal arrangement of quarters in a 15 fl Oz can) and physics (the can's walls can stretch and bend allowing more than 15 fl Oz), this means you could fit 253.48 quarters in a 15 fl Oz can.
15
A 1965 quarter has 0.15 oz. of pure silver in it, so if you want to know the melt value of it, simply multiply .15 by the silver spot price. For example, if the spot price is US$18 oz., your 1920-1966 Canadian quarter is worth about $2.70 in melt value.