Let the cost of a pen be dollars. Write an expression for the total cost of four pens and seven mechanical pencils in terms of .
1 answer:
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Answer:
22-18-25,
19-24-30,
7-24-25
Step-by-step explanation:
In a triangle with side lengths ,
, and
, any two sides must have a sum larger than the third.
Using this rule, the possible side lengths out of these choices that could form a triangle are:
22-18-25,
19-24-30,
7-24-25
