You open an account at Bertha’s Banking Branch. You put $50 in the bank and your account earns $4 per week in interest. How many weeks will it take for the balance in your account to be $90?

Respuesta :

Answer:

10

Step-by-step explanation:

50+4x=90

4x=90-50

4x=40

x=40/4

x=10

Q&A Education