Revolution lost are no ​

The last time i bought this product , it cost $20.00 but it looks like it cost 29. 60 today? what is the increase

You eat 8 strawberries and your friend eats 12 strawberries from a bowl. there are 20 strawberries left. which equation and solution give the original number of strawberries?

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 + 4x + 5 = 0