Please help quick! Write the quadratic function f(x) = 3(x + 1)(x – 7) in standard form. (Answers attached below)

John bought 5 lemons and used 2 of them for a salad how much did he use for. a salad . he used % of the lemons.

Which of the following represents a number squared is equal to twenty more than nine times that number ? a) x squared = 9x + 20 b) x squared = 20x + 9 c) x squared > 9 + 20x d) x squared = 9 + x + 20

Antonia and carla have an equivalant percentage of green marbles in their bags of marbles. antonia has 4 green marbles and 16 total matbles. if carla has 10 green marbles , how many total marbles does carla have