math

Claire wants to determine how brightly to illuminate her stage. stage width (in metres) x stage length (in metres) x 0.14 = total watts for stage
If her stage is 7.25 metros wide and 11.5 metres long,

a) calculate the exact number of watts needid to illuminate the stage
b) calculate the number of watts needid to illuminate the stage, rounded to the neares 10 watts,
c) write the answer to part a) in the form a x 10^k

Could you please check it and help me with corrections please please:
my answer is:
a)11.6725
b)
c) 1.16725x10^2

Thank you so much

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asked by Lucas

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