Which of the following is a monomial?
ο
ο α. 20x11
ο
ο β. 9
ο
ο c. 11x-9
ο d. 20x11 - 3x
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Atypical mre contains 1,200 calories.if the average solider eats 3 mre per day and is deployed for 15 months how many calories will be consumed by a 44 member platoon of soldiers

(98 points) i need with 5 questions. answer definitions are welcomed, but not necessary.

Haruka hiked several kilometers in the morning. she hiked only 66 kilometers in the afternoon, which was 25% less than she had hiked in the morning. how many kilometers did haruka hike in all?