Answer: 1 is not a perfect square. 3 is the only prime number one less than a square.
First you rewrite the multiplication problem up and down and then you multiply 2 x2 then 2 x1 then drop a zero then multiply 4 x2 then 4 x 1 and then add it together and get your answer which is 504
Answer
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Step-by-step explanation:
Answer:
pretty sure its B and C
Step-by-step explanation:
because they have a common multiplier of 2.5 and are similar triangles
18 x 2.5 = 45
20 x 2.5 = 50
Answer:
how many seconds per hour?
Step-by-step explanation: