Sixteen less than a number squared​

1. find the area of the unshaded square 2. find the area of the large square 3. what is the area of the frame represented by the shaded region show

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

If wxyz is a square, which statements must be true?