There are 3.9 mg of calcium in each ounce of cooked chicken. -write an equation for each relationship. tell what the variables represent-

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?

Solve the equation below: (x+4)/6x=1/x a. x=2 b. x=0,2 c. x=-2 d. x=0,-2

There are 45 questions on your math exam. you answered 810 of them correctly. how many questions did you answer correctly?