The expression 1.5 1.09 models the housing costs, in thousands of dollars, for summer term t years since Chinedu applied to his college. What does 1.09 represent in this expression? Choose 1 answer: Chinedu applied to his school 9 years ago. The summer housing costs were $1,090 the year that Chinedu applied to his college. The summer housing costs increase by 9% each year. Show Calculator