Answer:
16 mugs
Step-by-step explanation:
Total clay bought = 45 lbs
Clay used for sculpture = 15.8 lbs
Clay left over = 17.68 lbs
Clay used for each mug = 0.72 lbs
Number of mug = x
Total clay bought = Clay used for sculpture + Clay left over + (Clay used for each mug * Number of mug)
45 = 15.8 + 17.68 + (0.72 * x)
45 = 33.48 + 0.72x
45 - 33.48 = 0.72x
11.52 = 0.72x
x = 11.52/0.72
x = 16
Number of mug = x = 16 mugs