Find the non permissible replacement for a in this expression y-3/y+7

Mathematics

1 answer:

elena-s [515]2 years ago

7 0

Answer:

first 3plus 7 =10 then 10 y is your answer

now you help me

Alexandra makes a pattern she uses 2 square for every 3 triangles in the pattern , how many triangles will Alexandra uses if the pattern has 18 square?

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