Reciprocal of (-4/9) is

Although changes result from business transactions, the equality of the fundamental bookkeeping equation must remain. t/f

Adepartment store purchases screen-printed t-shirts at a cost of $5 per shirt. they mark up the price 150% (making the selling price 250% of the store's purchase price) and put them on the sales floor. every month that a t-shirt doesn't sell, the store reduces the selling price by 25%.

What are the sotions to the quadratic equation 9x^2=4