Roast beef has 25g of protein and 11g of calcium per serving. a serving of mashed potatoes has 2 g of protein and 25 g of calcuim. how many servings of each are needed to supply exactly 29g of protein and 61 g of calcuim?

Logan wants to know how many skateboards have defective parts. he inspects 20,000 skateboards and keeps track of the number of defects per board. use his probability distribution table to find the expected value for defects on a skateboard.