Jamaal spent x minutes today practicing his guitar and y minutes today on homework. If the total time he spent on both is 45 minutes or more, which inequality best represents his practice time?

The total time is the sum of Jamaal’s guitar practice time, x, and homework time, y, so it is x + y. “45 minutes or more” means the total can equal 45 or be greater than 45, which is written x + y ≥ 45. Therefore, the correct choice is x + y ≥ 45.

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