the town of cooperstown has 5,000 people. 4% of the people leave every year to find better jobs. how many people will be left in 7 years ?

[10 points, algebra 2]according to my answer key the restrictions are -1 and 4. but why not positive 1?

Arefrigeration system at your company uses temperature sensors fixed to read celsius (°c) values, but the system operators in your control room understand only the fahrenheit scale. you have been asked to make a fahrenheit (°f) label for the high temperature alarm, which is set to ring whenever the system temperature rises above –10°c. what fahrenheit value should you write on the label?

Given that y varies directly to the square root of (x + 1), and that y = 1 when x = 8,(a)express y in terms of .x,(b)find the value of y when x = 3,(c)find the value of x when y = 5.