If i spend 135 dollars and tax is 7 cents per dollar how much would be tax

Bruce is getting materials for a chemistry experiment his teacher gives him a container that has 0.25 liter of liquid in it.bruce need to use 0.4 of this liquid for the experiment. how much liquid will bruce use?

How to use order of operation in 20 divide by 4 multiply 5 = 1

Answer for 10 points show work you guys in advanced < 3