Robbie is building a dollhouse for his niece. The living room has a width of 8 inches and a length of 10 inches and has an area of 80 square inches. He wants to increase the width of the living room but leave the length the same. Write an equation to represent the relationship between x, the width of the room, and y, the area of the room. = 10y :: y = x + 10 :: y = 10x :: 2 = y + 10​

Someone answer this asap for gabriella uses the current exchange rate to write the function, h(x), where x is the number of u.s. dollars and h(x) is the number of euros, the european union currency. she checks the rate and finds that h(100) = 7.5. which statement best describes what h(100) = 75 signifies? a. gabriella averages 7.5 u.s. dollars for every 100 euros. b. gabriella averages 100 u.s. dollars for every 25 euros. c. gabriella can exchange 75 u.s. dollars for 100 euros. d. gabriella can exchange 100 u.s. dollars for 75 euros.