What type of problem can be modeled and solved with a 2-variable linear inequality

Use the quadratic formula to solve 5x=6x^2-3,what are the values of x?

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.

If 1/√5+1/√5+1=p+q√r , find the values of p, q and r