A line has a slope of 5 and another line has a slope of -1/5. Are the two lines parallel, perpendicular or neither?

Question 5 spring semester final exam math evaluate

Weekly wages at a certain factory are normally distributed with a mean of $400 and a standard deviation of $50. find the probability that a worker selected at random makes between $450 and $500

The ratios of boys to girls on a soccer league is 2: 5. if there are 28 boys, how many girls are playing soccer? extra points! will mark as brainiest asap