I believe that -15 is the answer
Answer:
all real numbers
Step-by-step explanation:
the domain will always be all real numbers
Five divided by the difference of a number and 12 equals the quotiene of 10 and the sum of the number and five
Divide the number of people selected by the total number of people.
90/500 = .18
This means that 18% of the customers were selected for the survey.
If the probability is the same on Saturday, then we can multiply the expected customers by our .18
700 x .18 = 126
126 should be selected for the survey on Saturday.