Help please on all of these

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

Write 5 in the form of a/b using integers to show it as a rational number

Iwill give brainliest. give accurate answer, . suppose tommy walks from his home at (0, 0) to the mall at (0, 5), and then walks to a movie theater at (6, 5). after leaving the theater tommy walks to the store at (6, 0) before returning home. if each grid square represents one block, how many blocks does he walk?