Suppose you use 135 calories of energy to perform a task, how many joules have you used? See, I don't want the answer, just the steps leading me up to the answer, like how to figure this problem out wiht out using a coverting system.

Assuming you are using energy calories, not food Calories, then

135 calories* 4.18J/cal= ...

so you are saying that there is 4.18 joules in 1 calorie, how many joules are in energy. I have my answer it is 564.3 using sinficant figures it is 564

564 Joules is corre ct.

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