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How do you write an expression
There is no equation in the question, only an expression.
1*01+01*
echo or print < both of which write text: <?php echo "TEXT"; print "TEXT"; ?>
9
how do you write an expression with three terms
the same : expression
Six times three equals eighteen. Subtracting twenty-four leaves your sum at negative six.
You can always write a numerical division expression as a decimal.
You write it exactly as in the question.
Write the general algebraic expression for each using matchstick?
P = 5s, where s is the length of a side. This applies to a regular pentagon. If the pentagon is irregular then P = (s1 + s2 + s3 + s4 + s5)