How are a common denominator and a common multiple alike and different

How many 2/5s are in 1 and 1/2 plz someone me right now

What is the distance between the points (2, 5) and (5,9)?

The graph below shows the line of best fit for data collected on the number of cell phones and cell phone cases sold at a local electronics store on twelve different days. number of cell phone cases sold 50 * 0 5 10 15 20 25 30 35 40 45 number of cell phones sold which of the following is the equation for the line of best fit? a. y = 0.8x b. y = 0.2x c. y=0.5x d. y = 0.25x