Answer:
Total weight = 266 ounce
Explanation:
In this question we have to tell the combined weight of the materials in the same unit.
Weight of calcium sulfate = 2 ounces
Weight of copper = 2.5 pounds
Therefore weight of copper in ounces will be = 2.5× 16 ounces = 40 ounces
Weight of nickel = 14 pounds = 14 × 16 ounces = 224 ounces
So total weight = 2 + 40 + 224 = 266 ounces
Answer is 266 ounces is the combined weight of the materials.