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a librarian estimated that the library had 65 books about george
washington and 80 books about abraham lincoln. the library actually has
67 books about washington and 71 books about lincoln,
to the nearest whole percent, what is the percent error of the librarian's
total estimate? write your answer in the box.

Why do interests rates on loans to be lower in a weak economy than in a strong one

Abag contains 3 red marbles, 2 blue marbles, and 2 green marbles. one marble is picked, then another marble. assume that the selections are made with replacement. a) find the probability of picking two red marbles with replacement. b) find the probability of picking a red marble and a blue marble. assume the selections are made without replacement. c) find the probability of picking two red marbles without replacement. d) find the probability of picking a red marble and a blue marble without replacement.

The diagram represents the polynomial 4x2 + 23x – 72. what is the factored form of 4x2 + 23x – 72? (4x + 8)(x – 9) (4x – 8)(x + 9) (4x + 9)(x – 8) (4x – 9)(x + 8)