Compare and contrast a casual friendship with a close friendship

Which of the fallowing best completes the sequence 12,8,5, a) 1 b) 2 c)4 d)0

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?

Two florida panthers were weighed. one weighs 6x+21 pounds and the two together weigh 14x+11 pounds how much does he other panther weigh alone