Respuesta :

laikr
how to solve it:
•1. multiply 7 x 1= 7
•2. multiply 7 x 4k= 28k

so the answer is: 7+28k

i hope i have been helpful :)

Answer:

7+ 28k

Step-by-step explanation:

By using distributive property. Distribute 7 to 1 that gives us 7. The distribute 7 to 4 that gives us 28