Kyle is practicing for a 3-mile race. his normal time is 23 minutes 25 seconds. yesterday it took him only 21 minutes 38 seconds. how much faster was kyle's time yesterday than his normal time?

Which statements are true? see picture

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%

To solve the system of equations below, pedro isolated the variable y in the first equation and then substituted it into the second equation. what was the resulting equation? { 5y=10x {x^2+y^2=36