Given that 2x + y = 4 and x + 2y = 5, find 5x^2 + 8xy + 5y^2

The number of potato chips in a bag is normally distributed with a mean of 71 and a standard deviation of 2. approximately what percent of bags contain between 69 and 73 potato chips? approximately 68% approximately 71% approximately 95% approximately 99.7%

The table shows the balance of a money market account over time. write a function that represents the balance y(in dollars) after t years.

Sue's average score for three bowling games was 162. in the second game, sue scored 10 less than in the first game. in the third game, she scored 13 less than in the second game. what was her score in the first game?