What is 17^2-4(-3)(20) in quadratic formula ​

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.

Closing a credit card usually _your debt ratio.a. increasesb. decreasesc. improvesd. has no effect on

How many quarts of a 50% solution of acid must be added to 20 quarts of a 20% solution of acid in order to get a 40% solution of acid?