Mortgage payments

Suppose Mr$.$ and Mrs$.$ Murphy want to purchase a home for $$300,000.$ They are prepared to put $$60,000$ down and borrow the rest.

The Murphys know that, ceteris paribus, the amount of each mortgage payment will $.$

if the number of payment periods decreases.

The Murphys should also know that the longer they will live in the house, the greater the portion of their mortgage payment will go to

$1$st blank options: increase, decrease, will not change

$2$nd blank options: increased significantly, has slightly increased, decreased significantly, not decreased by much