The price of the 15 0z item is $0.79. The unit price would be the price per ounce. the unit price is
0.79/15 = $0.053 per ounce
By rounding to the nearest hundredth, the unit price for the 15 oz item is $0.05 per oz. That is option B
For the 1 pound, 9 oz, we would convert from pound to oz
1 pound = 16 oz
thus, 1 pound and 9 oz is 16 + 9 = 25 oz
If the price of 25 oz is $0.87, the unit price per oz is
0.87/25 = 0.035
The price per oz for the 25 oz item is $0.035,