The table below shows the amount paid for different numbers of items. A 2-column table has 4 rows. The first column is labeled x with entries 1, 2, 3, 5. The second column is labeled y with entries 0.50, 1.00, 1.50, 2.50. Determine if this relationship forms a direct variation. Verify your answer.

What is the standard form of -5x^2+2x^4-11+x^3+3x

What are the solutions of the system? solve by graphing. y = -x^2 - 3x + 2 y = -2x + 2

Scores on a university exam are normally distributed with a mean of 78 and a standard deviation of 8. the professor teaching the class declares that a score of 70 or higher is required for a grade of at least “c.” using the 68-95-99.7 rule, what percentage of students failed to earn a grade of at least “c”?