The wheels of a car have radius 12 in. and are rotating at 750 rpm. Find the speed of the car in mi/h.

Long division the problem is 40 ➗ 348 = ?

If 3x+8=3x+8 is it one solution or no solution

2people are trying different phones to see which one has the better talk time. chatlong has an average of 18 hours with a standard deviation of 2 hours and talk-a-lot has an average of 20 hours with a standard deviation of 3. the two people who tested their phones both got 20 hours of use on their phones. for the z-scores i got 1 for the chatlong company and 0 for talk-a-lot. what is the percentile for each z-score?