Which of these is not random?
a. getting recommended by a teacher
b. choosing a card from a fair deck
c. rolling a die
d. flipping a coin

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?

Find the distance between (0,5) & (-4,2)

What is the value of n in the equation -1/2(2n+4)+6=-9+4(2n+1)