In 2012 the total global refugee population under the mandate of the UN Refugee Agency ( UNCHCR ) was 10.5 million people. By the end of 2018, the refugee population grew to 20.4 million people ( highest level ever recorded ). Let x, be the number of years since 2012 and y, the global refugee population for a given year. (a) write the equation of the linear function that represents the global refugee population based on the number of years since 2012. (b) the population of Canada in 2019 was about 36.3 million people. Based on the function found in (a), when will the total global refugee population be equal to the 2019 population in Canada