A cell phone plan costs $150 to start. Then there is a $25 charge each month. a. What is the total cost (start up fee and monthly charge) to use the cell phone plan for 1 month?

Prove that (x-2)is factor of p (x)=2x³-3x²-17x+30

What is the gcf of 20c^3-5c^4+30c^6

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.