there is a room 7 feet x 9 feet you lay a 1-foot wide plank from corner to corner touching all 4 walls how long is the plank

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

The table below shows the number of free throw shots attempted and the number of shots made for the five starting players on the basketball team during practice. each player's goal is to make 80% of her shots.

3/4 + p = 1/2? i’m not sure how to solve it