PLEASE PLEASE HELP NONE OF MY QUESTIONS WERE ANSWERED TODAY Solve x squared + 6x – 16 = 0 by completing the square.

(please show work for brainiest plus 5 stars)

The mean of a set of data is -3.82 and its standard deviation is 2.31. find the z score for a value of 3.99.

Adam plans to choose a video game from the section of the store where everything is 75% off. he writes the expression d-0.75d to find the sale price of the game if the original price is d dollars. gena correctly writes another expression, 0.25d, that will also find the sale price of the game if the original price is d dollars. use the drop down menus to explain each part of adams and rena's expression

What is 617.3 miles and each gallon of gas the car can travel 41 miles select a reasonable estimate of the number of gallons of gas karl used.