The scores on a test are normally distributed with a mean of 100 and a standard deviation of 20. what is the score that is 1 and one half standard deviations above the mean?

What are the solutions of the system? solve by graphing. y = x^2 + 3x + 2 y = 2x + 2

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?

The probability that an adult possesses a credit card is .70. a researcher selects two adults at random. by assuming the independence, the probability that the first adult possesses a credit card and the second adult does not possess a credit card is: