Multiply the two numbers
206x20=4120
D=51/77
First set up the equation equal to zero(0), the distribute from there.
Suspecting that his parents are going to give him $1,300 continually you would solve like this
$120,000-$100= $19,900
$19,900/$1,300= 92.23
92.23 is the amount of $1,300 donations it would take from his parents, so if he was getting $1,300 month it would take 92.23 months
Here is a key that showed up online
