Sydney has piles of 10 stickers sheets. she has 100 sheets in all. how many piles does she have?

Shannon drove for 540 minutes. if she traveled 65 miles per hour, how many total miles did she travel?

Aline is perpendicular to another line m2= (-1/m1), where m1 is the slope of the original line and m2 is the slope of the perpendicular line. which of the following equations represents the line that passes through the point (-2,1) and is perpendicular to the line below?

Will mark brainliest! ( explain the answer too, it can be one sentence)