Please help me I’m about to pull my hair out and please explain why or why not the answer is correct

Jenisey has $24 to spend on seven pencils. after buying them she had $10. how much did each pencil cost.?

2,10,-50 next two numbers geometric sequence

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