Jamal watched his older brother Robert lift weights. The bar alone had a mass of 20 kg. On the bar he had two 11.4 kg weights, two 4.5 weights, and four 450 g weights. What mass was Robert lifting?

- Math Help 5954
- Algebra 5468
- Math Word Problem 5133
- Calculus 2566
- Word Problem 5524
- Algebra 2 3735
- Algebra 1 4375
- Math Problem 1131
- Math Help For College 1488
- Math Equations 985