How many cases of soap you need to order to have enough for 7 days if 1 case have 150 an you use 300 bars per day

In triangle abc segment de is parallel to the side ac . (the endpoints of segment de lie on the sides ab and bc respectively). find de, if ac=20cm, ab=17cm, and bd=11.9cm;

10 points? me . its important ‼️‼️

Find the zeros of each function. f(x) = 6x^2 - 7x - 20