Can someone please help me with math.

Why do interests rates on loans to be lower in a weak economy than in a strong one

In right ∆abc shown below, the midpoint of hypotenuse ac is located at d and segment bd is drawn.if ab = 12 and bc = 16, then explain why bd = 10. hint: consider what you know about the diagonals of a rectangle.

Your food costs are $5,500. your total food sales are $11,000. what percent of your food sales do the food costs represent?