Is the anyone one here that’s really good in math?

Which of the following situations represents a linear relationship? a. theresa increases the distance she runs by 0.1 miles every week. b. the volume of a box depends on the length of box. c. the amount of money in a bank account increases by 1 percent each year. d. the population of a town doubles every 5 years.

The system of equations graphed below has how many solutions?

What is the solution to this system of equations? y= 2x - 3.5 x - 2y = -14