the number line below shows the four scores that Andy has at the end of each of the four rounds of a science competition. points can either be added to or deducted from the previous round score depending on how many questions has she answered correct or incorrect. answer the difference in points between the scores after round 1 in after round 4.

Find the balance at the end of 4 years if 1000 is deposited at the rate of

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 - 4x - 5 = 0

Question 1 of 10 2 points different groups of 50 graduates of an engineering school were asked the starting annual salary for their first engineering job after graduation, and the sampling variability was low. if the average salary of one of the groups was $65,000, which of these is least likely to be the average salary of another of the groups? o a. $64,000 o b. $65,000 o c. $67,000 o d. $54,000