How to solve 5 x 198 with the distributive property that includes multiplication and subtraction

If the measure of xyz is 81 what is the measure of yz

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

Your friend uses c=50p to find the total cost, c, for the people, p, entering a local amusement park is the cost of admission proportional to the amount of people entering the amusement park? explain.