Solve for a .

5.4 = a - (-1.8)

a =

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%.

Rectangle leg this 11feet and perimeter of 38feet what is the width of the rectangle in feet

Atriangle has a side lengths of 18cm, 80 cm and 81cm. classify it as acute obtuse or right?