Find all values of x that make the equation below true. 22 – 11 = 3
A. {4, 7}
B. {-7, -4}
C. {-4, 4}. D. {-7, 7}

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Can anyone explain to me how to do this? anything will .

There are 18 female students and 16 male students in a class. which of the following expresses the ratio of female students to male students in simplest form? а) 10 b) 9 to 8 c) 8: 9 d)18/16