Ernie spends 6 hours reading each weekend. ernie has 3 sisters. each sister reads the same amount ernie does each weekend. how many hours do ernie and his sisters read in all?

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An initial investment of $100 is now valued at $150. the annual interest rate is 5%, compounded continuously. the equation 100e0.05t = 150 represents the situation, where t is the number of years the money has been invested. about how long has the money been invested? use your calculator and round to the nearest whole number. years

What is the image of c for a 90° counterclockwise rotation about a? (3, 7) (-1, 3) (7, 3)