Respuesta :

508.75/27.5= 18.5 So he pays $18.50 per square foot

And 55.5x27.5=1,526.25 that’s $1,526.25+$508.75=2035 so the total installation costs $2035.00

54

a rule I follow:

same signs positive,

different signs negative.

-9 * -3 = 27

27 + 27 = 54

Step-by-step explanation:

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