Here’s my answers, for #10 it got cut off but I got m=9/7 and d=11.40
A random variable x is normally distributed with a mean of 100 and a variance of 25. Given that x = 110, its corresponding z- score is 0.40.
Answer: The given z-score is false.
Explanation: We are given:
Mean,
,
Variance, 



The z-score formula is given below:




Therefore, the z-score corresponding x=100 is 2
Therefore, the given z-score = 0.4 is false.
Subtract the distance of the Earth from the sun from the distance of Saturn from the sun to find the distance from Earth to Saturn:
1,424,000,000 - 149,600,000 = 1,274,400,000 km ( Saturn from Earth)
Divide the distance by the speed to find the time:
1,274,400,000 km / 28,000 km per hour = 45,514.2857 hours.
Round to 45,514 hours.
you cant do that because they are not like terms