1/2-3/4 is 0.25. helped you with #3! :)
$9= k•8 euros so k=9/8=1.125
So for every 1 euro we have $1.125
y=1.125•x
$27=k•24 euros so k=28/24=1.166666667
y=1.67•x
3x
When multiplying, power is added. When divide, it is subtracted.
The for answer of this product is