Can somebody help me?​

Ten times the square of a non-zero number is eqaul to ninety times the number

What is the slope of the line that passes through the points (–9, 2) and (0, 4)? the slope of the line is

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