Are the lines in the diagram perpendicular, parallel, skew, or none of these? l and m: l and n: m and n:

Ben is three times as old as samantha, who is two years older than half of michel's age. if michel is 12. how old is ben?

Using the side-splitter theorem, daniel wrote a proportion for the segment formed by luke segment de. what is ec?

Aprojectile is thrown upward so that its distance above the ground after t seconds is given by the function h(t) = -16t2 + 704t. after how many seconds does the projectile take to reach its maximum height?