In 2002, a group of investors invested $100,000 at 3.5% for 1 year. In 2003, interest rates climbed to 5.5%. How much more money would the investors have made by investing the same amount of money at the 2003 interest rate?

Twenty-five percent of the customers entering a grocery store between 5 p.m. and 7 p.m. use an express checkout. consider five randomly selected customers, and let x denote the number among the five who use the express checkout.

Need this asap if anyone can i would be very grateful. if you could show workings that would really

What are the solutions of the equation? 5z^2 + 9z - 2 = 0 a. 1, -2 b. 1, 2 c. 1/5, -2 d. 1/5, 2