Choose the best answer.

Question

Each Sunday, Mario weighs himself. Here are his weight changes over a 4-week period.



Week 1 2 3 4
Weight Change –1.8 +0.9 –1.4 +0.4




How much has Mario's weight changed over the entire four weeks?

Question 3 options:

1.9 pounds

–1.9 pounds

–4.5 pounds

4.5 pounds

Answer 1

The correct answer is 1.9 pounds. This can be calculated by adding up all the weight changes: (-1.8) + (+0.9) + (-1.4) + (+0.4) = -1.9 pounds.