Which is the value of this expression when p=3 and q=-9

The table respent two linear functions the equation respented by the first tables is given

Answer question above and explain each step : )

Karen is financing $291,875 to purchase a house. she obtained a 15/5 balloon mortgage at 5.35%. what will her balloon payment be? a. $220,089.34 b. $219,112.46 c. $246,181.39 d. $230,834.98