4 Samantha drove her car for 13 miles at a certain speed (s) to get to her first destination. On her second leg, she drove for 12 miles going at a speed 10 miles
per hour faster to get to her destination. If Samantha drives for a total of 3 hours, which equation below models the combined time Samantha spent driving?
(A
B
13 12
= 3
8 + 10 8
s 8 + 10
+
= 3
13
12
13 12
3
8
8 + 10
13 12
+
3
s
8 + 10
D

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

Hannah paid $3.20 for 16 ounces of potato chips. hank paid $3.23 for 17 ounces of potato chips. who paid less per ounces?

(b) suppose that consolidated power decides to use a level of significance of α = .05, and suppose a random sample of 100 temperature readings is obtained. if the sample mean of the 100 temperature readings is x⎯⎯ = 60.990, test h0 versus ha and determine whether the power plant should be shut down and the cooling system repaired. perform the hypothesis test by using a critical value and a p-value. assume σ = 5. (round your z to 2 decimal places and p-value to 4 decimal places.)