Sylvia has three gerbils. if two of her gerbils each have six babies every two months, how many babies will the gerbils have altogether over one year's time?

72 babies altogether

Step-by-step explanation:

2 = The 2 Gerbils

6 = the 6 baby gerbils each has

12 months = a year

2 months) 2 x 6 = 12

4 months) 2 x 6 = 12

6 months) 2 x 6 = 12

8 months) 2 x 6 = 12

9 months) 2 x 6 = 12

12 months) 2 x 6 = 12

12 + 12 + 12 + 12 + 12 + 12 = 72