Please help this is my fourth time asking this question please answer it correctly with explanation

The jewelry store is having a sale. necklaces that were regularly priced at $23.50 are on sale for $18.80. what is the percentage of decrease in the price of necklaces?

If the square of a positive integer is added to 2 times the integer the result is 48. find the integer.

Select the correct answer from each drop-down menu. consider the trinomial below. x^2 - 9x + 20 the factors of the given trinomial are chose 1: x + 5 chose 2: x -5 x + 2 x + 10 x - 2 x -10 x + 4 x -4