Can someone plzzz do these or at least somee!! ill give u all my points

Write two subtraction equations that are equivalent to 5 + 12 = 17.

The population of a small rural town in the year 2006 was 2,459. the population can be modeled by the function below, where f(x residents and t is the number of years elapsed since 2006. f(t) = 2,459(0.92)

The length of the line segment ac is 8x-9 what is the value of x