Abcd is a rectangle. find the length of each diagonal.

ac = 2 (5a + 1)
bd = 2(a + 1)

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

What is the ratio of the length of an object in yards to the length of the same object in miles?

If wxyz is a square, which statements must be true?