Multiply by 1-digit numbers: word problems

An apartment has 4 bedrooms. Each bedroom has 3 bookcases. How many bookcases are there in the apartment?

3 × 4 = 12

There are 12 bookcases in the apartment.

Raven was practicing for a marathon. She practiced for 9 days, running 1 miles each day. How many miles did Raven run altogether?