Respuesta :

Answer:

h = 6

Step-by-step explanation:

3.5 (2h + 4.5) = 57.75

7h + 15.75 = 57.75

7h = 42

h = 6

hope this helps :)

Answer:

6

Step-by-step explanation:

3.5(2h+4.5) = 57.75

7h + 15.75 = 57.75

     -15.75    -15.75

7h = 42

/7    /7

h = 6