The fish population in a local stream is decreasing at a rate of 2.5% per year. The original population was 45,000. Write an exponential function to model this situation. Use y and x as your variables.

What is the equation and solution for the sentence? the sum of a number and thirty-one is one hundred thirteen. write the equation as n-31=113 and subtract 31 from both sides. the answer is 82. write the equation as n+31=113 and subtract 31 from both sides. the answer is 82. write the equation as n+31=113 and add 31 to both sides. the answer is 144. write the equation as n-31=113 and add 31 to both sides. the answer is 144.

What is the interquartile range of this data set? 2, 5, 9, 11, 18, 30, 42, 48, 55, 73, 81

700 miles the train takes 5 hours to a travel the distance at what unit rate is the train traveling?