If the foot length of women follows a normal distribution with a mean of 23 cm, and 81.5% of a foot length between 20 cm and 28 cm, what is your estimate of the standard deviation of the height in this population?

27 is what percent of 108? 27 is % of 108

Acar started driving from city a to city b, distance between which is 620 miles, at a rate of 60 mph. two hours later a truck left city b and started moving towards city a at a rate of 40 mph. what distance from city a is the point where the truck and the car will meet?

Which steps could be part of the process in algebraically solving the system of equations, y+5x=x^2+10 and y=4x-10