For the first one the answer is 17
And for the second one its 5.5
<span>{x= 0 + y </span>⇒ x=y<span>
{3x + 12y= 15
3y + 12y = 12
15y = 15
y = 1
x = y = 1
Answer: x=1, y=1</span>
Change the 30% into a decimal
so its .3
then multiply 2075/.3
and you get $622.50
