5(3x+4y) is equivalent to 15x-20 !
Wow, i wonder why they were lifting a large boulder? They should put it down they could get hurt!!
You can use quarts to convert
first do pints to quarts
then do quarts to gallons
Just multiply 42 by 10 and that gives you 420 , so the real car has a length of 420cm or 4.2 metres :)