One car traveled 220 miles and drove 10 mph hour slower than a second car which drove 260 miles. if the cars were traveling for the same time, how fast was the first car traveling?
65 mph
85 mph
75 mph
55 mph

Leo is going to use a random number generator 4 0 0 400 times. each time he uses it, he will get a 1 , 2 , 3 , 4 , 1,2,3,4, or 5 5. what is the best prediction for the number of times that leo will get an odd number?

An automated water dispenser fills packets with one liter of water on average, with a standard deviation of 5 milliliter. the manual says that after a year of operation the dispenser should be tested to see if it needs recalibration. a year later a number of filled packets are set aside and measured separately. it is found that the average packet now contains about 0.995 liters. does the dispenser need calibration? explain your answer.

Two variables, x and y, vary inversely, and x=12 when y=4. what is the value of y when x=3?