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Tag <?= ... ?> in PHP
What does a special set of tags <?= and ?> do in a PHP script page? <?= expression ?> allows you to output the value of the specified expression into the HTML document directly. 2006-09-01, 7098👍, 0💬

Math
Rachel opened her math book and found that the sum of the facing pages was 245. What pages did she open to? a. 122 and 123 b. 242 and 243 c. 16 and 17 d. 24 and 25 a. 2006-09-01, 6751👍, 0💬

Expression Evaluation
What is the value of this expression? +1-2*3/4 -0.5 2006-09-01, 6672👍, 0💬

Values of Auto Incremented Columns
Assuming that the structure of a table shows two columns like this: --------+------------+------+- ----+--------+---------------Field | Type | Null | Key | Default| Extra --------+------------+------+- ----+--------+---------------user_id | int(15) | | PRI | NULL | auto_increment email | varchar(80)... 2006-09-01, 6242👍, 0💬

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