Two friends, Gianna and Samuel, took summer jobs. Samuel earned $634.40 in 26 hours. Gianna makes $256 in 10 hours, and $512 in 20. What is the difference in pay between the two?​

What is the product of the radical expression. (7-2square root) (8+2 square root)

Aquadratic equation in standard from is written ax^2= bx+c, where a, b and c are real numbers and a is not zero?

One of every 20 customers reports poor customer service on your company’s customer satisfaction survey. you have just created a new process that should cut the number of poor customer service complaints in half. what percentage of customers would you expect to report poor service after this process is implemented? 1.) 5% 2.) 10% 3.) 2% 4.) 2.5%