A set of data items is normally distributed with a mean of 90 and a standard deviation of 12. Convert 90 to z-score

4. The sales price of a car is $12,590, which is 20% off the original price. What is the original price? 1. $14,310.40 2. $14,990.90 3. $15,290.70 4. $15,737.50 5. $16,935.80

A manufacturer of stereo sound speakers has found that the revenue received from selling the speakers at a price of p dollars each is given by the polynomial - 4p2+420p. Find the revenue received when p=60 dollars.

Tracy can wallpaper 7 rooms in a new house in 21 hours. together with her trainee they can wallpaper the 7 rooms in 12 hours. how long would it take the trainee working by herself to do the job? round to the nearest tenth.

How many thirds are in - 4 2/3

Partial products and solve 14 times 22

If an oxygen atom has 8 protons and 10 neutrons in its nucleus, what is its atomic number? 10 8 not enough information to calculate 18

If Sam has 6/8 apples and he gives 4/6 away How much doe she have left?

What will the length and width be for a perimeter of 15

Nothing at all nothing

tell whether the events are independent or dependent. Then find P (A and B) ... You roll a number cube two times. Event A:You roll an odd number on the first roll. Event B:You roll a 4 on the second roll.