12-0.15×12=$10.2
16-0.15×16=$13.6
20-0.15×20=$17
25-0.15×25=$21.25
Sorry if this didn't help.
You reduce 24/36. 12/18, 6/9, 2/3
Answer:
Fran's balance will be $866.73.
Step-by-step explanation:
She has an existing balance of $752.69
Her current card charges her a transfer fee of 12.5%, added to her balance, for transferring her debt.
This becomes: 
Total is : 
The new card has an opening fee of $50, which is also added to her balance.
This becomes now = 
She will also have to make an immediate minimum payment, which is 3.35% of her total balance.
This amount is = 
Now balance in her account is = 
So, Fran's balance will be $866.73.
Use the left and right triangles. (the two smaller ones -- ACD and BCD)
By similar triangles ACD is similar to BCD
on the left AD/CD is one ratio
On the right CD/DB is the other. These two ratios are equal because they are corresponding parts.
AD / CD = CD / DB
AD = 3
DB = 12
CD = ??
Substitute.
3/CD = CD/12 Cross multiply
36 = CD^2
sqrt(36) = sqrt(CD^2)
CD = 6 <<<<==== Answer.
A <<<<====Answer.