If the mean is 67, the total of all the data values has to be 67*4, or 268. 268-56-63-70 = 79, which means the fourth data value has to be 79.
Less than because if you subtract 11, 138 minus 9,405 you get the answer you get 1,733 and that is less than 2,000
-6z=12
z=-2
choose D
that's it
First we divide it by 100 to get 1% of the original price, which is $0.295.
Then we multiply that by 22 to get 22% of the original price: $6.49.
The discount was $6.49, hope this helps!