Respuesta :

Answer:

See Explanation

Step-by-step explanation:

10) 52 + 3D = 79

3D = 27

D = $9/DVD

11) a. 72 + 6h = 96

6h = 24

h = 4 hours

b. 7 + 4 = 11 am

12) -200 + 43m = 15

43m = 215

m = 5 minutes