4. Find the LCM of each of the following. Leave answers in factored form.
a) 3m + 6, 2m + 4
b) 3y - 3, 5y + 10
c) 4m - 8,6m – 18
d) 8x - 12, 10x – 15

Lindsay used two points, (x,y; ) and (+2.82), to find the equation of the line, y = mx + b, that passes through the points. y2-y, first, she used the definition of slope and determined that the value of mis x, - . given this information, which expression must represent the value of b?

Quadrilateral abcd in the figure below represents a scaled-down model of a walkway around a historic site. quadrilateral efgh represents the actual walkway. abcd is similar to efgh. what is the total length, in feet of the actual walkway?

Which equation can be used to measure the density of water in a spherical water tank? let w represent the number of water particles within the region.