This means the cost of the item to you is $413. You will pay $413 for a item with original price of $590 when discounted 30%. In this example, if you buy an item at $590 with 30% discount, you will pay 590 - 177 = 413 dollars.
Answer: Like the angles BAC (56°) and BDC has the same arc BC in the circumference, these angles must be congruent, then angle BDC must be equal to 56°.
