Amodel house that runs completely on renewable
energy uses 2 windmills and 3 solar panels. each
windmill generates m kilowatt-hours (kwh) of
energy per year, and each solar panel generates s
kwh per year.
which expressions can we use to describe how
many kwh of energy the model house will
output in 10 years?

50- 250 is correct i did that one too

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a

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its wrong