The scale factor for Maria's dollhouse furniture is 1:8. If the sofa in Maria's dollhouse is 7 1/2 inches long, how long is the actual sofa?

The actual sofa is 60 inches or 5 feet long.

Step-by-step explanation:

1. Let's review all the information given for solving this question:

Scale factor for Maria's doll house furniture = 1:8

Size of the sofa in Maria's doll house = 7 1/2 inches

2. Let's find the size of the real sofa

Size of the real sofa = 7 1/2 * 8

Size of the real sofa = 60 inches long.

Size of the real sofa = 60/12 feet (1 feet = 12 inches)

Size of the real sofa = 5 feet long.