In a survey conducted in an office, 60% of the sample respondents agreed that employees should have flexible working hours. If the margin of error is ±2%, the expected population proportion that wants flexible working hours is between
% and
%.

How do you answer this question? (step by step)

Acable company wants to provide cell phone service for residents on an island. the function for the cost of laying the cable from the island to the mainland is c(x)= 6.500 square root x2+4, where x represents the length of the cable in feet. what are the domain and range of the function? a) domain: all real numbers range: all real numbers greater than or equal to 17,000 b) domain: all real numbers greater than or equal to 0 range: all real numbers greater than or equal to 17,000 c) domain: all real numbers greater than or equal to 0 range: all real numbers greater than or equal to 13,000 d) domain: all real numbers greater than or equal to 13,000 range: all real numbers greater than or equal to 0

When i add money am i supposed to make it like this 7+12 or 7.00+12.00 because i got 19 dollars for my answer