$2\mathrm{.}21$ LAB: Driving costs

Driving is expensive. Write a program with a car's gas mileage $($miles$/$gallon$)$ and the cost of gas $($dollars$/$gallon$)$ as floating$-$point input, and output the gas cost for $20$ miles, $75$ miles, and $500$ miles.

Output each floating$-$point value with two digits after the decimal point, which can be achieved as follows:

System.out.printf$("\%\mathrm{.}2$f$",$ yourvalue$)$;

The output ends with a newline.

Ex: If the input is:

$25\mathrm{.}0,3\mathrm{.}1599$

where the gas mileage is $25\mathrm{.}0$ miles$/$gallon and the cost of gas is $$3\mathrm{.}1599/$gallon$,$ the output is:

$2\mathrm{.}53,9\mathrm{.}48,63\mathrm{.}20$

Note: Real per$-$mile cost would also include maintenance and depreciation.