What is the least common multiple for 15 and 6

Kayla wants to find the width, ab, of a river. she walks along the edge of the river 65 ft and marks point c. then she walks 25 ft further and marks point d. she turns 90° and walks until her location, point a, and point c are collinear. she marks point e at this location, as shown. (a) can kayla conclude that δ and δ are similar? why or why not? (b) suppose de = 15 ft. what can kayla conclude about the width of the river?

Which expression is equivalent to -5(3x - 6/7)

If private savings 'v' = 0.75s and total savings 's' equals $4.20 billion, solve for public and private savings.