Ihave a stat class review and what would be the letter choice for this scatter plot?

a scatterplot with the least squares regression line is shown.
estimate the value to the nearest half unit

what is the observed value for x=3

a 1.5
b -1.5
c 4.5
d 6

any explanation im offering 25 pts: )

Adam plans to choose a video game from the section of the store where everything is 75% off. he writes the expression d-0.75d to find the sale price of the game if the original price is d dollars. gena correctly writes another expression, 0.25d, that will also find the sale price of the game if the original price is d dollars. use the drop down menus to explain each part of adams and rena's expression

What are the solutions of the system? y = x^2 + 2x +3y = 4x - 2a. (-1, -6) and (-3, -14)b. (-1, 10) and (3, -6)c. no solutiond. (-1, -6) and (3, 10)

4+(2+x) can you me solve this problem