Please answer to all parts.

Devise an exponential decay function that fits the given data, then answer the accompanying question. Be sure to identify the reference point (t = 0) and units of time. The homicide rate decreases at a rate of 3% per year in a city that had 800 homicides/yr in 2010. At this rate, when will the homicide rate reach 700 homicides/yr? What is the reference point (t = 0)? O A. the future number of homicides, 700 O B. the rate, 3% O C. the year 2010 O D. the initial number of homicides, 800 What are the units of time? O A. cities O B. years O C. homicides/yr O D. percents Write the exponential decay function. y(t) = Type an expression. Round coefficients to three decimal places as needed.) In what year will the homicide rate reach 700 homicides/yr? (Do not round until the final answer. Then round to the nearest whole number as needed.)