Final answer:
The Jacksons earned $7,560 from subletting their cottage over a six-month period by receiving 72% of their monthly mortgage of $1,750 each month.
Step-by-step explanation:
To calculate the amount the Jacksons earned from subletting their summer cottage over six months, we need to follow these steps:
First, we find out the monthly sublet income, which is 72% of their monthly mortgage.
Then, we calculate this income for one month, and multiply it by six to find out the total amount for six months.
Their monthly mortgage is $1,750. The monthly sublet income is 72% of this amount:
$1,750 \(\times\) 0.72 = $1,260
Therefore, the income from subletting the cottage for one month is $1,260.
To find out the income over six months, we multiply the monthly income by 6:
$1,260 \(\times\) 6 = $7,560
This means the Jacksons earned $7,560 over the six-month period.