PLEASEE HELP WILL GIVE BRAINLEST 20 POINTSthe total cost for Sophia to build b birdhouses is represented by the function f(b)=3.5b+24. What does the value 3.5 represent in this situation? For each birdhouse built, the total cost decreases by $3.50. For each birdhouse built, the total cost increases by $3.50. The initial cost is $3.50. The total cost to build b birdhouses is $3.50.

Answer:For each birdhouse built, the total cost increases by $3.50.Step-by-step explanation:Let's try some of the answers and see if they work.The "initial cost" will be the cost when 0 birdhouses are built.... f(0) = 3.5·0 +24 = 24 . . . . . clearly, not $3.50Then increasing the number of birdhouses by 1, the cost is ...... f(1) = 3.5·1 +24 = 27.5 . . . . . the cost has gone up (not down) by $3.50Clearly the total cost to build 1 birdhouse is not $3.50. (It is $27.50.)___Our exploration of the formula leads us to conclude ...... For each birdhouse built, the total cost increases by $3.50.