Two hikers are 33 miles apart and walking toward each other. they meet in 5 hours. find the rate of each hiker if one hiker walks 4.4 mph faster than the other.

Can someone me with my hwplz(only the circled ones)

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%

Solve this equation using substitution. {4x + y = −2} {4x + 6y = 44}