Which of the following is a quadratic function?

a. y = x2 – 81

b. y = x4 – 64

c. y = x – 9

d. y = x3 – 27

Fabian harvests 10 pounds of tomatoes from his garden. he needs 225 pounds to make a batch of soup. if he sets aside 2.8 pounds of tomatoes to make spaghetti sauce, how many batches of soup can fabian make?

What is the measure of angle tvu shown in the diagram below

Hector and alex traded video games. alex gave hector one fourth of his video games in exchange for 6 video games. then he sold 3 video games and gave 2 video games to his brother. alex ended up with 16 video games. how many video games did alex have when he started?