620 is invested in an account earning 5.5%interest APR, compounded quarterly. Write a function showing the value of the account after t years

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Find the roots of the equation below. x^2 - 6 + 9 = 0

Gregory draws a scale drawing of his room. the scale that he uses is 1 cm : 4 ft. on his drawing, the room is 3 centimeters long. which equation can be used to find the actual length of gregory's room?