Use benchmarks to estimate the best unit of measurement of a grand piano.
A. 1 pound
B. 1 ounce
C. 5 pounds
D. 1 ton
1 answer
The best unit of measurement for a grand piano would be C. 5 pounds. This is because a grand piano typically weighs between 500 to 1,200 pounds, so 5 pounds would be easier to use as a benchmark for estimating the weight of a grand piano.