Một thửa ruông hình chữ nhật có chiều dài 80m , chiều rộng ít hơn chiều dài 5m . Tính diện thửa ruộng hình chữ nhật đó bằng bao nhiêu mét vuông

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%.

Evaluate the expression for the given value of the variable 7a - 4a for a =8

A3-dimensional figure has a square base and 4 lateral faces that meet at a point. explain the difference between the cross sections when a slice is made perpendicular to the base through the vertex, and when a slice is made perpendicular to the base and not through the vertex