In the inequality x≤ −4 check all the values that satisfies the solution. (a) 4
(b) -4
(c) 1
(d) -1
(e) -5
(f) -6
(g) 6

The scale for a map is 20 miles = 1/2 inch. the distance between two towns on the map is 3 3/4 inches. what is the actual distance between these towns? 150 miles 38 miles 75 miles 135 miles

This is so hard and it’s for a test

Monitors manufactured by tsi electronics have life spans that have a normal distribution with a standard deviation of 1800 hours and a mean life span of 20,000 hours. if a monitor is selected at random, find the probability that the life span of the monitor will be more than 17,659 hours. round your answer to four decimal places.