Suzy decided to purchase 3 points in order to lower her interest rate on her
$125,000 mortgage. How much additional money does she need to bring to
closing?

well it depends on how much each point is worth and how much it will take off per month for Suzy to pay.

Step-by-step explanation:

1point = X

125,000 - X

And after you find that amount she'll need to bring 10% of what's left as a down payment

  or  

step-by-step explanation:

if the four friends split the cost, p, of the pizza evenly, then each friend pays one-fourth of the cost of the pizza.

the expression is   or