c programming questions

please answer

1) Precedence dictates the order of evaluation when two operators share an operand; ( ) 2) The scanf0 function returns the number of items that it successfully reads.; ( ) 3) A side effect is the modification of a data object or file; ( ) 4) Computer floating-point numbers can't represent all the values in the range. Instead, floating-point values are often approximations of a true value; ( ) 5) The location of the defined function in main 0 -not the location of the defined function definition in the file-that determines when the defined function is executed; ( ) 6) C divides the C function library into families of related functions and provides a header file for each family. ( ) 7)The scanf0 function uses whitespace (newlines, tabs, and spaces) to decide how to divide the input into separate fields. ( ) 8) The main intent of the statement is to modify the data object; ( ) 9) A full expression is one that's not a subexpression of a larger expression