Simplify each expression by combining like terms 2x+4x+6+8

Which graph represents the equation y =4x

Aline has a slope of negative 1/4 the past two points -5/4 and 1 what is the equation of the line

Andy wants to find the distance d across a river. he located points as shown in the figure, then use similar triangles to find that d = 223.5 feet. how can you tell without calculating that he must be wrong? tell what you think he did wrong and correct his error. round your answer to the nearest tenth if necessary. andy must have used the wrong . the distance d is actually feet.