Charlie's lawn service fills up all their gas cans every Friday at Zeb's store. They have to get enough gas for 10 lawn mowers and 10 weed-eaters. The weed-eaters use 5 liters of gas each. The mowers us 60% more than the weedeaters.
Zeb charges .75 cents service per item. Fuel is .40 cents per liter. How much will it cost to fill all mowers and weed-eaters? Choose the correct choice from the following choices
A) $77
B) $60
C) $67
D) $62
E) $55
Lots of calculations.   .75*20 + 10*.40*5+ 5*(8/5)*10*.40= 
<gadget id="calculator">.75*20 + 10*.40*5+ 5*(8/5)*10*.40</gadget>
<output>67</output>
$67   The correct option is $67
<result>C</result>
Charlie's lawn service fills up all their gas cans every Friday at Zeb's store. They have to get enough gas for 10 lawn mowers and 10 weed-eaters. The weed-eaters use 5 liters of gas each. The mowers us 60% more than the weedeaters.
Zeb charges .75 cents service per item. Fuel is .40 cents per liter. How much will it cost to fill all mowers and weed-eaters?