I need help ASAP... Most helpful wins brainliest.

a) 4 months

b) $600

Step-by-step explanation:

1. x - number of months the total amount paid to be the same for both stores.

2. That same amount for store A:

3. That same amount for store B:

4. Since it's the same amount for both stores we can make an equation:

5. To find that same amount, we can use either side of above equation:

a

step-by-step explanation: