David is shoveling driveways to raise money for his SpringBreak trip. Each driveway he shovels, he earns $15. After shoveling 12 driveways, David has $243 saved for his trip. Write an equation to represent the amount David has saved as a function of the number of driveways he has shoveled.

Answer:Total savings  = $63  +  12 ( m)   : m  = number of driveways shoveledStep-by-step explanation:Here, the money earned for each road David shovels = $15The number of driveway shoveled by David = 12The total money saved  David has after he is done with his work = $243Now, The number of money saved by shoving 12 driveways  = 12 x ( Money earned by shoveling 1 driveway) = 12 x ( $15) = $ 180Total savings  = His previous savings  + Money earned from Shovel work⇒  $243  =   His previous savings + $ 180⇒ His previous savings = $243  - $180 = $63Now, we can write his total savings as:Total savings  = $63  + 12 ( m)   : m  = number of driveways shoveled